I've got a scuba tank, 3000psi its the normal sized one. I'm gonna get it tested but I want to know how much it'll be worth once it's been done. It even comes with the A clamp so you can gas your gat from it.
Tbh honest tanks are harder to shift as you are limited to local people as they work out very expensive to post. I would say £80-£100 is about going rate.