I flew for the West Coast distributor for Piper for a few years and my favorite airplane was the PA18 Super Cub. It did not have a clipped wing option. Some one may have modified it somewhere but you couldn't get one from Piper. The full scale airplane would do just about anything you would want but it was still a utility category airplane (not approved for aerobatics) Considering what some duster pilots did with the "A" model I wonder what the restrictions meant. I've flown a bunch in the duster and it was a ball. If you're going to put a pilot in it please put him in the front seat. I've seen so many Cub model J3's with the pilot in the front and PA18's with the pilot in the rear seat. The PA11 was an upgraded J3 with 90hp and fuel in a wing tank. It was the first Cub with an engine enclosed in a cowl. It was also the first Cub to be flown solo from
the front seat. If you were solo in a J3 you flew in the back, in everything from the PA11 on you flew solo in the front seat. If you intend to install wing struts please don't forget the jury struts. The main strut attachment was the the same point as the front leg of the landing gear. The PA18 still had external shock cords for the gear and metal covers much the same as the J3. The later PA18's had a round paper carburetor air filter instead of the rectangular one.