I repair pumps and I bought a used 1095 without fully inspecting it first thinking it would just need a repack. Turned out it needed a repack, piston rod, prime valve, and a major componet had a crack which would cost $500 to replace new. Luckily I was able to install a helicoil to fix it so only sunk $200 in parts instead of $700 which at that point i would be better off buying new. I also bought a used 395, repacked it and has paid for its self 10x over in rentals.
short story: used equipment can be hit or miss
short story: used equipment can be hit or miss