Unfortunately, it is not that simple as one might think since the mig welder works in constant voltage mode and not on constant current as a stick electrode welder. its output voltage is lower - 16 to 22 or 24v and it has to be rectified since it works on dc. the common way to regulate is a trnsformer that is made with taps - which I believe that dont exist in your case. in addition - there is a choke on the output of the welding current. one more thing - you need to add another winding that will supply the power to the feeder motor, so to take all this into consideration - it is not that that simple. it can be done but I think that to buy even a second hand mig welder is much better, unless of course, if you are determined to do it, no matter what.