Well, Picco has been making some seroiusly powerful larger engines for some time now. Mostly for racing boats but they had a few hot ducted fan engines a few years back before the turbine movement took off.

This engine definetly has possibilties if they make an aircraft version.

PS: found the Picco website and it looks like they are strictly into cars, buggys and marine these days. If you want one of these you gotta get the car version and modify it looks like.