The newer brushless single (CKBLA12) looks like a win. The specs are nice. It’s rather compact. Will do more than what my present compressor can do. Has a fan. Parts like solenoids and other small parts are transferable. I’m going to see if I can get this dumb bolt in and start it up. If so I’ll run it. If not I’m buying the newer version. About $600. 
https://store.arbusa.com/brushless-single-motor-onboard-12v-air-compressor-ckbla12/
https://store.arbusa.com/brushless-single-motor-onboard-12v-air-compressor-ckbla12/