I would suggest a 220v name brand TIG welder w/a 60% or higher duty cycle. If you are going to weld 10 gage or thicker, I would look for at least a 160 amp output. I have a 200 amp Miller which should last a lifetime. I've had it for 24 yrs w/no problems .Again be carefull of the duty cycle. The big 3 are Miller,Lincoln & Hobart. I have always been of the opinion that Miller & Lincoln are the prefered.

Do a search for welders on the web for prices.
Don