I am just not into it really after working on aircraft for years; pretty much did it all in my time with that. I’ve replaced landing gear, brakes, tires, fire suppression systems, avionics electronics, generators, toilets, flooring, custom cabinets & seating. Replaced ignitor plugs all the way to swapping entire turbine engines. Rigged flight controls after replacing cabling, flaps, rebuilt hydraulics & generators, sealed leading edges & fuel tanks, resurfaced engine bores to remove corrosion, sheetmetal & paint repairs for cowling - I can’t think of a single system I haven’t entirely repaired or replaced. It was great to understand how things work & go together, but it’s mainly just sweaty work. The only satisfaction for me is a job well done, not the process.