So did I when he first said. I was gonna ask for his mates number and sneak the deal under him (just kidding).I'd not realised it was a DC unit - had thought it an AC like yours mate.
Decent machines.
It's not a bargain it's priced about right. Acdc it would be a bargain. I had a 210amp dc pulsed Tig of equal quality and I got £600 for that so it's certainly in the ball park for dc only end machine.
Good luck. You can weld cars and body panels with Tig as I've done it lots and find it actually makes a nicer job a lot of the time. It's not as easy or fast as mig and it's far less tolerant to rust so prep is more so important but it's a very suitable method.