welder/welding machine question

The first job I have in mind is some thinner stuff, probably 1/16 or so
Where mig wire is sold in many thicknesses I only saw 0.030 in the small aluminum spools. Hopefully that's what this unit takes.
Just plan on spending some time on practice material. You want to push the aluminum spool gun (not pull), and you will move much faster than when running steel. At that thin, you will likely be on and off the trigger. Make sure your joints are tight!