Its all fun if you let it be. Giant scale to reworking the smallest hardware available for tiny indoor stuff. Take a Peanut Scale rubber model and rework it with one of the smallest Eflight electronics to turn it into a full house rc indoor flyer. Getting involved as a pilot and resource person for the local university SAE Aerodesign team. My latest interest happens to be Stol as in the Valdez Alaska Competitions
. I have plans for a 1/2 scale Cub from which a Modified PA11 could be built. Balsa USA plans for a 1/3 Super Cub could be scaled up. I also have the digital plans for a full size from Northland from which a 1/2 scale might be made.
North Land Aircraft - Suppliers of Piper PA-18 Super Cub blueprints and the PA-18 L21 Manual. Lots n lots of irons in the fire too little time to do it all.