I want to weld light steel and maybe heavy sheet metal and have it look fair.
I am not sure if a 110 volt would work well enough for me
Depends what you consider light steel or heavy sheet metal.
Up to 1/4" thick steel, the only difference is the 110v can be easier to put in your truck and move around, and you can use it in a lot more places.
There is no difference in the welds between 110 and 220v if 1/4" thick or below.
I have a 20-foot long dual axle car trailer. There is nothing on that trailer thicker than 1/4" other than the axle stubs.
The amps setting for welding 1/4" steel is the same, regardless of the input voltage, so it makes no difference if it's 110v or 220v.
I'm referring to welds from a quality machine like Hobart/Lincoln/Miller, not some 30-year old discount POS.
The Everlast iMig 140 is a good 110v machine at a great price $399.
Get the C25 gas setup.
You might be a little surprised how much the gas part costs, but your projects will come out much nicer.
If you are ONLY going to weld where you already have the 220v.... I'd get a 220v machine.
And of course 110/220 are very handy too. I have a Miller 110v and a Miller 110/220.