I agree with VF1Skullangle. I haven't seen anyone say they're building either of those. There may be someone working on one of them, but they haven't posted here. With respect to plans for parts, or suppliers for aftermarket parts, you're probably not going to find (m)any. There are a few supercar wreckers (like Eurospares in England) where you can buy new and used oem parts. FGP-stuff in Poland sells some reproduction parts. Other than that, you'll just need to search the internet to find what you need. Unfortunately, it's not like trying to find stuff for a Mustang or a Chevelle. You'll need to be creative in what you use... or have a really big budget for oem parts.
Good luck with the project!