Buddy, I'm not persuading, but in this money I would buy a small MMA inverter welder, light, comfortable, easy to weld, like an electrode. Generally, Dedra is recommended in this forum, it is worth reading

. Even a penny, even after the purchase of electrodes, will be cheap, and electrodes will be bought for the pieces you buy. Or as a migomat, it's normal, you can find used in these funds, complete with a 5kg bottle, filling such a bottle of CO2 is about PLN 30, 5kg wire comes out similarly, welding convenience better than self-locking, which is incomparably more expensive (unless you're going to to buy really Chinese badziewie), some route or some slag there, the quality and construction of the device itself is often very thin.
We'll see what others write, but for me, self-controlled wire magnetizer is a bit dead end, and the possible reworking of the welder in the future, to weld gas from the cylinder is also a considerable expense, sometimes it is necessary to add a rectifier, dławik, poprawic / replace the feeder, handle, add a solenoid valve, etc .. I bought a used and somewhat devastated TIP Super Mig 160A migrant for PLN 120, basically for the feeder, power subassemblies and housing, I bought a cylinder and reducer, replaced the 3 meter handle with the euro connector and the same I mounted the socket, I added a cooling fan, and as it turned out later that I lost my original control, I made a new one for a few zlotys on immortal cubes NE555

- in total, it all came out below PLN 500, has copper windings, 0.8 wire on the highest range, it's nice to weld, it does not overheat, I'm fully satisfied for such a machine

it's enough for garage work, a bracket for somebody, shelves, brackets, sheet metal in the car, I still have the transformer Bester Sta225, but since I have a migomat, I'm practically standing fallow, unless something really fat needs to sleep.