Good morning, I have an older Craftsman 6hp single stage compressor (919.175260) that has been an awesome workhorse for some 30 years. I wore out a pump quite a few years ago and replaced it. Last weekend, the pump died after many more years service. Apparently, these pumps are now obsolete. I have looked at a Shultz MSL 18 that I think I can make fit. The pump claims replacement on 2, 3, or 5hp units. My question is can I use this pump with my 6hp electric motor ? The motor turns 3450 rpm. I realize a change in pulley size on the motor will be in order. Thank-you for your time & input.