110 vac welders have a very low duty cycle half way threw a bead it shuts off.
and you have to have an outlet rated for the power your going to pull.
As far as welding with arc, body panels lots of warping and holes.
It will be very messy.
A mig or TIG would be the way to go.
An AC arc welders on 110ac when you hit the piece of work with your stinger
first itll stick fast then pop the breaker its a pain.After you get the breaker set then you have to go and break off the rod.
6010 6011 rods work but are farm rods ,messy and burn violent.
6013,nice rods but have to have AC rods.
7018 is the best but for light work go with a mig.