Where do yall get parts from?

I´ve been using Summit the last couple of times, nice prices easy to deal with.
Year One got superior service, IMO, the best.
Mancini got nice prices but not that good services, again IMO.
The problem for us overseas is that the shipping hurts when we have to deal with different vendors. The more we´re able to buy from one place the cheaper the shippings.
It would be great to have a coordinator in the US.
But that would take both money and time.