Man this is rough, ngl I started to convert one of these myself ages ago, but it has been sat largely unfinished as other things take priority. Seeing yours made me want to finish mine since I think we can both agree this Corvette is gorgeous and it deserves some love. Now I'm not saying mine's perfect, there's probably a ton of bugs and oddities I missed but IMO the difference between the 2 versions is night and day.
mega.nz
I commented my ext_config.ini file a bit so people can read a bit about what does what, and why I do certain things, it's not super detailed but if it helps even one person, I'm gonna consider that a win lol.