I don't believe that I would want to do it in an older, non-pressurized aircraft, such as a C 210 (an L model), with a piston engine burning 100LL. Particularly without a new engine, new avionics, and...
This is a helicopter video I like. The yellow helicopter is a Ukraine designed Sanka with a converted Subaru auto engine. The unit appears to be highly inspired by the Hughes 269/MD 300/Schweizer-Sikorsky...