Yessir! I don't have a tig though, so stainless is pretty tough to do. I've built whole systems from scratch, and I normally use oxy/aceteline torch and welding stick so I can do it on the car. I have a really nice mig welder, but it works best on slightly heavier gauge material.
Hit me up if you wanna swing by to check it out.
I can re-drill the hubs and rotors/drums on your mk1 or mk2 focus to accept 5x108 or 4x100 wheels for only $120!!! http://www.focusfanatics.com/forum/showthread.php?t=323550