Not an expert by any means, but why a PC-12 and not a PC-6? It's cheaper to operate, at least just as tough, and tailwheel (thus more character
)
On the other hand, if we're talking light singles in the spamcan category, then there are a number of them (think Super Cub or a Mousquetaire) which can be modified for MOGAS.
I'm curious to know what Mr. Bronx is up to