Huge respect for you taking this project on. Enjoying your posts and amazed with your progress given the limited resources you have at your disposal.

I had thought, though, that the snail placement you've chosen was just for proof of concept. But, it looks like you are committing to it. I'm sure you considered every possibility - but is that really the only place it can go? Kills any prospect of being a sleeper (not that that is what you are necessarily going for). Although, on the flip-side, it does immediately offer a great statement piece and an interesting view from the cockpit.

I've read about rear installed turbos (a lot of plumbing is required, but a positive is that it eliminates the need for an intercooler due to the ambient cooling that occurs naturally by distance). Wondering if that might have been a possibility for you (turbo installed in spare wheel wheel)?