Amazon is a excellent place to buy parts. I bought my Sunlite Deluxe double springer fork from Amazon got it through prime so free 2 day shipping and the fork was $90 for me vs the $130 I paid for the same fork in a 1" threaded version. Which the $30 I got screwed out of by Niagara I really paid $120 for my amazon one.
But little tip don't screw up like I did take and hit up amazon for parts when you find what you are looking for else where. Might come out cheaper. I didn't do that and paid shipping that I really didn't need to.