Choosing Between Fielder 300A and Eurotec 300A Inverter Welding Machines for Home Use

Hello, I am looking for a good welder for house works. Price about PLN 400 with accessories. I invented two welders on the Allegro, but I can not get anywhere opinions about the model as well as about the company. Maybe you recommend something or choose from these two?

Boxer: http://allegro.pl/spawarka-inwertorowa-300a-inwerterowa-mma-igbt-i6714628435.html

EuroTec: http://allegro.pl/spawarka-inwertorowa-300a-inwerterowa-mma-igbt-i6654983696.html

Both of these welders are rubbish. Look at the plugs on the wires of the first one, on the plugs, write 200 A, and the welding machine is said to be 300A. Look at the second welder, he writes that a durable and solid electrode holder, but also up to 200 A, and the welding machine is supposed to be 300 A. The power of one of them is 7 kVA, with a 230 V power supply, it consumes 30.5 A current a socket with such protection and a current of 32 A and an extension with a suitable cross-section?
Every now and then it will turn off due to overheating.
Look for something three-phase or at least two-phase.

Could you recommend something at a reasonable price to be able to use at home without having to replace the whole energy installation?

Generally, it is difficult for me to recommend something because the welding machine is a troublesome device. In order to weld well and without interruption every 5 minutes, it must have appropriate output voltage, adequate current and appropriately selected elements for the current flowing through them. All this makes it virtually impossible to do something like a 230 V welder that consumes a small current, but which gives a large output at the output, with the right voltage and to be small and light.
You want a good welder to buy the BestBar SPB 400, 3 phase, 32 A current consumption, 230 kg weight and 400 A output current, 240 A for continuous operation. It can be called a welder and say it is good.
With such small things like welding machines, people praised some Dedra, there's a video on youtube like it's welding. With such durable ones, Bester STA 140 and 225, two-phase, but also large electricity from the network, and at the same time weigh approx. 50 kg.