I've ordered stuff from Calmini, SLR and 4x4 Parts...and, ironically, the only vendor that got every order right was SLR...Calmini and 4x4Parts all had various mistakes/unexplained delays.

I am happy with all three of them though, as all made things right in the end.

Frankly...ordering parts is one of those things where a rush on a particular part can wipe out a shop's on-hand inventory, and any vendor can be caught with his pants around his ankles when the suppler tells him it will be a few more days...so he tells his customers a few more days...and then no parts arrive because the steel never arrived at the manufacturer's factory, etc...

Overall - I think its safe to order from any of that group.