I don't think they sell online anymore. You'd have to go through your music store and that would not be cheap. Try guitarfetish.com. When they get stuff in it is usually a good price. Although I got a twisted neck from them and sent it back. They sent me another one that was perfect. Now all I need is a body but they are out. Not sure which way I'm going (EVH or sunburst). I've got a Jackson neck I'm building a body for but not sure what shape. I've got the center part made from maple. It already weighs a ton.

They sell more online now than they ever did :

http://www.allparts.com/

To answer the OP's question, no, I've never built a complete guitar with their parts, but I have bought quite a few parts from them over several years. They stock a wide selection of Fender@ Factory parts and have quick and competent staff workers there.

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I've also bought some specialty knobs for my tele from them. They have a great selection of "parts".