I have ordered quite a lot from there, if the local guys can't help.
Your first order needs to be paid for before shipping, and as they don't take cards, you'll need a US dollar money order. Place the order, wait for the total, send the money order, get your parts and with it will be your account details. After that, its order and pay on invoice which comes with your parts!
A hint on ordering - if you ask for "that silver bit on games made in the mid-80's you know, up near the top of the playfield" you'll get a fairly terse response (or perhaps none at all, which is probably for the best! :). You need to order by manufacturer and part number, no exceptions! Although once I was known as a customer who always carefully specified what was being ordered, I found them a little more obliging.
