The GB Cub would be best. The ailerons can be shortened without harm to flying qualities and the stab-elevator span could be reduced likewise. If you fly on asphalt then sheet the bottom of the wingtips. That will keep the covering intact when dragging a wingtip from time to time. The gear needs a little strengthening, too! Just add a rear leg to 'complete the triangle'. It's a great flying airplane long or short wing.