The Culver is fabric covered, usually with poly paint. It can stay on the ramp unless it rains a lot. In WA, might be too wet. For any wood plane, flying them regularly at altitude is the cure to any moisture issues. Aside from that if the Cadet won't work the next best retract is an early Bonanza. Cheap enough to buy, can take 87 oct autogas and if the throttle isn't mashed all the way in will fly 135Kts at 9GPH. All the other light single retracts are simply another attempt at a 'Bonanza killer' and they all failed in that regard. The Comanche 180 would come close, but it'll never be a Bonanza. Short body Mooney would work but I prefer the Bo.
Sunset Aviation, OK has one $59k.