Look online or in the phone book for a local company. Check them out by asking around. When you find a good one, stay with them and build a relationship. You'll be able to ask questions and get real answers from someone who knows what their doing, and knows what you're doing also. Tractor Supply has...

Nice looking work.

Why vertical down? Looks like your fixturing will allow you to position the welds at a more friendly angle.

What are you going to weld? If your just learning, or a hobby welder buy a welder you can grow with. I like to use a fairly large welder, 250 amps or so. You certainly can weld with a little Harbor Freight buzz box but you soon outgrow the machine. I've used transformer and generator types and if mo...