I think that you can make the v8 swap but NOT IN THE FIRST RELEASE, it will be nice to try a v8 in this mod but it's NOT a PRIORITY! I'm enthusiasm to see the first version of this mod, what is done for now is amazing, I'm ready to test it when it will be release. But Nekkit, that's your mod, so do what you want, we love your work so keep it up like this. Sorry for poor english.
I am pleased with it as a whole, though I do have a nitpick about the instrument cluster. I just think it looks a bit... I mean, it's not terrible, but to me, I think that could use a more inspirational cause to it. It's a bit lifted off of the typewriter, if you asked me.