So you finally get that funky Aermacchi aluminum tank you want. Now, where do you find the fuel valve and cap for 30 year-old tank? eBay you say. Right but after you get crap that doesn't fit and you spend hours on Google you tend to give up. Now what size cork do I need???
There's this thing called (no pun intended) the phone and sometimes you have to pick it up.
It wasn't on their website but after a phone call I struck gold.