If it is all there and working that is not bad, I see it new online for abut $300.
It is not a great unit, but for what you want to do, it would be OK. It is a cheaper welder, lower duty cycle and amps, I was not able to find out if you can add a bottle of gas for shielded welding or not The flux core stuff is messy compared to shielded gas welding, but it is good for outside work. Should run off of any 120v 20 amp receptacle, which is good too.
A little more searching and it looks like it can take a bottle and regulator.
If it is in good shape, for $100, why not
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward