I agree, I think it would be a great replacement option! Finally got a call back from the V8 Miata guys and they are pretty tied up with other projects until later this year. I was told they have already come up with an adapter plate setup which is there own custom doing and not a Kennedy Engineering piece, although that is about all I got from them. I've got a message in to their Engineer who is up in Tennessee so hopefully he will call me back.
I also put a message out to Kennedy Engineering but no word back yet. My fabricator could definitely come up with a good mounting system but an adapter plate and clutch setup may be asking a bit much.
Next step I think is to figure out some dimensions as I'm pretty sure there will be some height clearance issues. See how bad we are off and figure out options to correct it. Might be as easy as modifying the engine cover or may take a redesign of the intake manifold.
Between the adapter plate and clearance I think those are the biggest issues. A few other variables to work out with regards to the fuel system etc. but nothing major I think.
I think it can be done. Let's figure it out
J