2002 mz rt 125

I currently have 1 out of 2 in America making it difficult to find parts and when found they're at a ridiculous price love the bike got it with 300 miles on it I've put 1200 miles on top of that but looking for some insight on places,websites,links ect for parts accessories all around anything and everything if anyone could comment or post some and or their experiences with said bike I would greatly appreciate it