I am enjoying our current way to do this and that is multiple suppliers meeting all our needs instead of getting it all at once in a slower, rigid, less efficient way for us.
Can you give reference to suppliers with which you traded with successfully, so I can ask them for confirmation? Someone from this forum?
If I find these trusted, I am willing to try out with you today sending you 50 BTC first, and you send me a USD wire for it. If it all works out OK, we can later build up the volume.