I don't think it'd be worth it to pay someone to do it IMO. Of course, it also depends on how much work you do to prep it. Its a couple hour job, start to finish, so you're probably looking at $300 or so for a shop to do it. Figure roughly $100 an hour for the welders time, plus tax and materials. However, if you cut the section off, and had it all prepped, you might get away with $75-100 or so