Ian im one of the few that have not had the good fortune to meet you but your avitar pretty much sums up what I might expect ! good choice!

Sprink and others...
When I say the 110 would suit the 140ex, I mean it would do the job... as would the 120. This is a light aeroplane remember.
Now if you have the engine, funds, or skills to warrant the YS 140 then Ab So Blinkin Lutely.... get it in there !

Trust me, with the 140 and a 17x8, most of your flight will be at half stick and below... unless your an animal on the sticks of course.

When I flew the 140 Ali now has, I found the power was only being used for extreme 3D stuff, even torque rolls are done at just above half !

gotta go