In a way, you could treat a flux-core MIG with AC output and a 50 or 60 Amp minimum as a stick welder, and for use on 3mm and above garden-gate type work it would probably do the job.treat the machine as stick welder for the moment
By the way, a lot of modern inverter MIGs, starting at a price range of about double what you have just paid, do offer stick welding functionality as well as MIG.