Welcome Voultar! I too have a 350F, mine a '72 model that was bolted to a Velorex 562 sidecar. I'm 99% finished with my "preservation" (as opposed to "restoration") I'm just making mine as nice as it can be given what it is now. A nice "survivor". It's a 40 year old bike that looks like it's about 20 years old. I'm of the opinion that you can restore a bike dozens of times, but it's only original once. I also really like stock best, so I'm just making everything on it as good as it can be without going too far.
I've been through the bike stem to stern, having completely disassembled everything and cleaning it up, replacing bad or broken parts, etc. Only thing I've painted was the battery box; I had to sandblast and paint that because it had gotten acid on it at some point and was rusting and needed cleaning and paint for structural preservation.
Only thing I'm waiting on now is some custom 2-to-1 collectors to be built so I can hang the aftermarket mufflers I have for it and start 'er up! At that point it should only need dynamic timing set and a carb sync to be ready to go! Unfortunately being January in Michigan I won't be able to actually RIDE it for another 3 months, but having 'er done and under a cover waiting for the first spring day will be great!
Welcome to the club and I'll help you any way I can.