If I were you I'd avoid a metal prop on an A-65. The crankshafts in those old engines weren't hardened and they crank easily, and finding a replacement crank is nearly impossible after you've had a prop strike and have cracked the crank. They've been out of production for a long, long time. A wooden prop is much more likely to shatter and save that priceless crankshaft. I had an A-65 crank break in flight due to a crack that very likely started long before when someone had a prop strike and the mechanics did what they did back then---they "dialled" the crank to see how much runout there was , thinking that if the crank was bent much it needed further checking. Over the years it was found that cranks could twist a lot during a propstrike and spring back close to normal, but a crack would have started. The small Continentals tend to crack their cranks way at the back end of the engine, between the first and second rod journals. Don't know why, but I've seen it. Your inspector shouldn't be insisting on a generator or whatever unless you have a transponder or ADS-B. I had just a Com and fed it using the small sealed lead-acid battery used for emergency stopping on trailers with electric brakes. You can get them rather inexpensively, with a plastic battery box and everything. Mine had a button on the lid that when pushed would light up some LEDs to tell me how much power I had left. Handy. I think I paid $30 for the whole thing.