Ok.
Here's my list so far:
Frame: Amazon - Crazepony Martian RX255 - $29.99
Flight Controller Stack: Banggood - Eachine Stack-X F4 Flytower w/FPV camera - $105.99
Motors: Amazon - DYS 2206 2600KV, set/4 - $75.99
Props: Amazon - Gemfan 6040 3-blade, pk/16 - $16.99
Batteries: Banggood - Infinity 4S 1500mAh 70C - $20.99 - 2 pcs.
FPV goggles: Banggood - Aomway Commander - $310
Grand total: $580.94
I think that's pretty good for a decked out 250 quad with goggles.
If anyone has better suggestions to these items please reply.