Hi Green Jeans, for what you paid for it and what it owes you, Id hang onto it unless you really need the money....
You know that if you ever need the money, within 2 weeks it can be listed and sold on ebay 'as is' and still make good money. The reality is, it is a clean, original machine, and any restorer/collector knows that the original machines are the ones to start with - no trying to source hard to get parts, at big $$. When you are buying a 'restored' machine that has had paint or plating work done, gauges rebuilt etc, it is no longer original. And if not done to the petential buyers standard, can put people off.
What you have there, in my opinion, will appeal to a larger market. Make the best of what you have and keep it clean and running regularly. You can still enjoy it, park it etc. Just dont damage it
Start spending money on plating, and it makes everything else appear old. And to do a nut and bolt restoration is exceptionally time consuming and expensive, and in reality maybe only yield you a couple of grand more than what you would get for it now. Ask me how I know
Hope this helps you.