RE: New pilot, need a suggestion.
6 channel should be fine.
I use a futaba 6 ch 2.4 setup but i am sure there are plenty of fine others out there.
LT 40 will fly well on a 40 or 46 2 cycle. I would also consider a 52 to 60ish 4 cycle. Maybe a 60 2cyc would be a bit too much?
tom