I love using rockauto for buying car parts for this reason. Basically the whole site works like it's 2002, in a good way. Enter site. Click the items you need, with easily searchable indexes. Get multiple different brands and choices of same part. Go to checkout. Enter email and zip code you used last time. Enter CC info. Done.

That's the point at which I assign a shop it's very own email address and give it a bad phone number (not incorrect, unrouteable)