Long? cut it out, ospho, mig, harbor freight bender. It's not that hard to do it correctly. Maybe $600 in tools that you will use again. If you have the $, I would buy a Hobart.
Hobart rocks,
I swear I could teach my 2 yr old grandaughter to use mine if they made welding hoods that small.
It has to be one of the easiest welders to use.