Small fluxcore welder

I used a 110 welder years ago with flux core to weld patch pannels on a pickup but i dont remember how ir worked. I have some work Now i could use a cheap light welder to weld some sheet metal and exhaust pipe. Their is enough welding that it will be worth spending the money to buy some thing rather than haul my big welder and tank or would it be worth geting a small mig and small bottle?

Small fluxcore welder