They’re $150
Nothing included but the welder itself. A 2 lb spool is $20. So for $200 he could flux core weld his exhaust.
But he doesn't know how to weld.
So for $200 he could learn how to weld by trying to weld his exhaust and get frustrated with all the leaks he ends up with only to spend another $70 on clamps and 16" long sections of tubing from auto zone.