Even if you get one in your cart (and it says you have 10 mins to complete check out), when you go to check out, it gives you an out of stock error.

This is the first time I've tried to order from Blokforge, so was hoping their site would work better than some of the other distributors 
Fair queuing, guys... not that hard.
Lock table
Check available qtys
Reserve items (or update qty table)
Unlock access
Repeat and handle next customer request...
(and don't give me an out of stock error if the stock is already in my cart)