I think there are probably only about 10 or so cars on the road unless anybody else knows different? Spares will never be great with a kit car but you just have to accept that. I'm guessing the jigs moulds will remain available to make spares. The Virago would use a new chassis and would be re-engineered to an extent that they probably wouldn't use existing tooling/moulds.
Other than 19" wheels, I have kept the rear end of the old chassis as my looong term plan is to fit a 4.2l Audi V8 with Audi transaxle longitudinally, maybe with some turbos for good measure and I can use it to do all the mocking up but for now it will be my daily commuting car while I finish off my WRX powered beetle cabriolet