Lots of good inputs, Thanks everyone! Working on the cockpit and cabin so far. A little painting tonight. I'll have to trim the A-10 wings a bit or they will stick beyond the rotors. I've been looking at the tail and I wonder how hard it would be to add a fan in fin system. If not then A-10 style fins with rudders will be an option.
The TF-34's are in a 9000 lb thrust range and would provide the high speed force. I was watching Coast Guard Alaska and started thinking of a Coast Guard paint job. A high speed aircraft that could hover and hoist for rescue etc. would be attractive for them.
I have thought about a four engine CH-53 before, on the I'll get to it sometime list. If I get two kits I could make the cabin wider.
One thing at a time. At least the room is done and the wife is happy.