IIRC only Nagra VI anniversary editions feature an aluminium front plate and the famous chicken-head rotary buttons. AFAIK Nagra does not provide any upgrade path to replace the regular plastic front plate by the aluminium version nor is the aluminium front plate freely sold as spare part (only as replacement of an existing damaged aluminum front plate) which seems sort of normal as it's about a limited jubilee edition (about 60 pieces?).
@ supoUSA: It's much more simple indeed.
I'm not referring to some company redesigning an aluminium front plate and sell it but simply about making CAD design files and from there the part can be manufactured the usual way. As the part is simple, small and not requiring a high precision it can be machined using nearly any CNC machine tool which can accomodate parts of the discussed size. Indeed most CNC can machine larger parts anyway.
Basically there are only two suppliers involved: a CNC machine shop, a [i]very good[/u] surface treatment company like for example Aloxyd which can brush, anodize and print.
A not well known inkjet print process can be used for frontplates (not to be confused with garden variety common inkjet):
Aluminium and glass printing | Aloxyd AG
If using black color a very high UV resistance is achieved. For other colors UV resistance varies but is mostly of concern for panels installed outdoor (there are examples, see the link above).
The discussed inkjet marking process is compatible with any flat part which can be well anodized, it's also very competitive because no tooling is required.
To make the drawings of the part an existing plastic front plate must be measured. The front side is so simple that not even a 3D measurement system is required (like a Faro arm, a Zeiss Contura, or 3D scanner,...).
Indeed it all depends on the complexity of the rear side. The required precision for functional dimentsions is low. Non functional dimensions are not critical at all and can easily be measured even by hand.
Brushing, anodizing and inkjet prinitng would not be that expensive and costs per piece very quickly drop if say 5 or 10 pieces can be made.
Material costs are low, typically pre-machined precision plate material like Haba would be used, this reduces machining costs. Important is to check with the anodizing supplier which exact material can be used as anodizing compatibility widely varies.
Also the type of anodizing should be determined with the supplier (requirements about hardness, esthetics, etc.) and there are couple of details about electrical contact points for the anodizing process to check as it can help lower costs.
To get a first idea, ideally someone should post good pics of all sides of a plastic front plate, especially the rear side and also of the front of the recorder case with front plate removed. Of course even better would be to see if there are differences other than the front plate and buttons between the regular and anniversary edition.
I don't know the costs as it would depend a lot on quantities but it should be around a few hundred CHF/EUR/USD (maybe less than 500) if CAD files are provided (per front plate maybe if 2 or 3 are made and quite less each for maybe 10 pieces).
I don't say that the plastic front plate is good or bad as such, it's only about a possible option to replace it by an aluminium front plate.
And BTW, how about a metal handles instead of the removable plastic handles (Nagra Part # 01.32050.026)? Not looking simiar, rather some plate with maybe a slot for a strap.
Edited:
Audio Technology Switzerland can't go direct, you require support and a local network.
That said, if we take SD as example, in Switzerland there's one official distributor (which
seems to dictate its prices as I saw the same end-user prices everywhere I checked them online) but sadly in real life it's still difficult to find a reseller who knows the product and can let you have a look at it in the store. I don't mind paying a somewhat higher price if I've a competent dealer. Sadly SD products are not well represented in Switzerland, if they were I'd have requested a MixPre-3 instead of something else and someone I know can't find some VideoDevices video assist here (don't know which model but the audio company importing SD doesn't even mention VD video assist products though featuring some VD video recorder, Sound Devices (SD) and Video Devices (VD) are basically the same manufacturer).
So overall if I can't get the local pre-sales support I'd like I would finally prefer ordering directly from the US.
Paying higher prices, suffering longer shipping delays and no support? No longer an option since we got Internet.