RE: Tiger .60 . Building suggestions?
A 91 4-stroke is ideal for this plane. I can't comment on Magnum because I have no experience with their 4-strokes. I do, however like Graupner 13.5 x 8 props on a 91/4
As far as the other things go, Flaps are not needed, and I set them up with nosewheels, mainly because it comes with the kit, and the ones I have built were for rookies, and I don't like to get someone into a taildragger until they are proficient at flying.
The only mod I made to this kit was to taper the elevators and rudder, and that was purely for cosmetic purposes.