lol just you wait, as soon as you buy nmore the original ones will arrive :-)

Discovered that while you can run the board and other electronics of any 5v usb power - you do have to have the main psu hooked up to run the motors and hot end.
It will detect the motors, just won't run them without the 12v feed.

The wifi module is pretty interesting, it's actually a little router. Have to go through the instructions again, but had no problem connecting to it as a router with my tablet.
Going to sort out the struts this week, I think. Much easier to sort the rest out once you've got a basic structure to attach things to.