Like AWAP, I've bought a bunch of regs on Ebay. Mostly old Dacors (Pacers, Olympics, etc.) I can't help myself. I just love those old chrome-plated brass Dacors. Most of them have been in excellent to new condition. Very easy to dissassemble, replace parts and adjust, although out of a dozen or so only one needed a diaphragm and one other needed exhaust valves (which I destroyed by attempting to unecessarily remove them) both of which are available on, guess what, Ebay. I'm looking at a couple of new ones right now which I hope will be overlooked because of the BS stories around that you can't find parts for them. All the o-rings and low pressure seats are replaceable and available and I haven't found one of them that needed metal parts. I also bought a set of new Oceanics which I use just in case my Dacors need a backup.