Well, I wouldn't have too many bad thoughts about the noises coming from a hand turned generator. If the brushes are tight, as they should be, they will drag and make a little noise (especially when rotated in reverse). If the rear bushing is dry, it can squeak, but it requires regular oiling. I've not had good luck with generators and installed an alternator after toasting 4 generators in under 20,000 miles in my TR3. -I had the "up-rated" /increased capacity TR4 style generator.
Now I have one of those tiny Kubota 30A alternators. It's been installed for about 4,000 miles without a problem -longer than I managed to have any of my generators last. I used the original pulley, with some red lock-tight. I fabricated a spacer to replace the stock pedestal bolt. I also drilled/re-tapped the tensioning bolt for non-metric threads and used a grade 8 bolt with a back-up/locking nut on the other side. I tried to offset the rapid charging at initial start-up by wiring as the attached picture shows -at the control box. You should notice a small white wire added to the fused side of the green fuse that runs to the alternator "switched/sense" terminal. Also the small-Y/G is tied to the small-Y for the dash idiot light. Y and NU are on the A box terminal, while NW is on the A1 box terminal taking advantage of the internal resistance to somewhat limit initial charging. Box terminals F and D are open, and G isn't required, but doesn't matter since the box is only there for looks. My Ammeter never pegs, my lights are never dim and my battery remains charged.
If you decide to use LED headlights, you may get brighter lights that draw less power. I have off-the-shelf halogen bulbs that use less power than the original bulbs. They may be brighter than original, but not as bright as modern cars. I don't see that adding relays to my headlights are worth the effort. I do have a new wiring harness, and know that 50 year old wires will not conduct as well as new. I do not see my headlights dim when the TR3 is at idle, as I did with the generator.
If I were to do it all over again, I think I'd first paint the Alternator Black, so it didn't look as obviously non-original.