It's a dedicated hf tig machine under a respected brand name. I'd expect it to fetch at least £150 probably closer to £200. I'd imagine they are around £500-£600 new?
Any used welding gear is worth what anyone is prepared to pay, and no real point in phoning dealers and asking its value, unless you are looking to PX for new. I get lots of phone calls from people asking the same type of question about old off road bikes, and would suggest if you do decide to phone round dealers, to provide them with close up high res pics of the welder, and details of what you are looking for to replace it.
Afraid it doesn't cheers thoughHas it got a pedal? I know an old boy looking for a cheap TIG set to learn on, wants a pedal though.
No straight on offWill it take one? Is there a socket for a pedal I mean?