Clarke welders have been mentioned here a few times before. For the most part no one in the US seems to be very familiar with them. I believe they're made in Italy and parts are not always readily available here like they are for Lincoln, Miller, Hobart or even Century welders.
I did a Google Groups search and found messages about people having problems with them so unless the price is REALLY right I'd stick with your original idea.
"I'm not grown up enough to be so old!"