Sounds like a good deal to me if it really is in good working order. The nomenclature suggests that it might be a rebadged Miller DialArc
250HF. If it is, that is a very capable machine. I would not trade mine for any other before spending a fair bit of time with the replacement candidate. A guy who made his living as a weldor once told me that the guys in the shop hated it when the boss replaced the DialArc's with Synchrowaves. Before the replacement they could weld ally tanks leak-free nearly every time, after the replacement they had to do a lot more rework. Not knocking Synchrowave here, merely recounting an anecdote.
Thats a Miller Dialarc 250-HF (or is very very likely to be) and is a strong, well made and dependable machine.
Also badged as a Bumblebee. The Linde is likely to be painted green and white, the Miller, blue and the Bumblebee is Orange and white, but they all have the same guts/face/controls.
Thats the average price..maybe a bit in your favor. It does have a cooler?
A doctrine fostered by a delusional, illogical liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.