There are a number of online sites. Partsnmore.com should have them as well. There was nothign special about the 75 carbs for the f if I remember right. Also, unless your jets are messed up, they rarely need replacing. Also, if you need needles for whatever reason, get honda needles as a lot of people report issues with keyster needles.
The ride IS the adventure. The destination is just to get gas!