it may not be all the machine some one else needs ,,, failing that ewm do some really nice 3ph machines with remote wire feed and a lot of exotic features ,, double pulse and loads of memory and loads of power ,,If it's all the machine I'll ever need why is it for sale ?
they would be all the machine anyone would ever need ,,, the 20k price tag may put many off though ....
I own a couple of '' nice '' machines , but I make a healthy income from welding with humble machines also .
you pays yer money , you makes yer choice .... as an older and wiser man than me often used to tell me.