I don't know what that bike looks like up close, but on my laptop, it looks fantastic. The PO must have stored it in his living room for the past 30 years. I say keep it original. If you want to throw some money at it, buy some original pipes. That will double the price of the bike. Cafe your next bike.
It's not perfect...here's what I've found flaw-wise:
LH Side Cover has a 2" crack
Very light pitting in various places
The headers are pretty good but the mufflers are junk
The rear tire needs replacing soon...there is light cracking
The fuel leaks if a little if I don't shut off the petcock.
There's an oil leak in the rear oil line.
Slight oxidation around the engine block.
Also, can you guys give me any pointers on deciding if the paint is original vs an older restoration? If so, I'd appreciate. It doesn't have the helmet safety sticker on the gas tank and that got me wondering if it hadn't been repainted (possibly fully restored) at some point.