Wish I’d known you when I bought it 3 years ago. Even with shipping it would have been worth it. I spent way to much on that particular project, especially the DeVilbiss 445 I had to couple it to.
I have all sort of motors - in case you need them - usually in the 1hp --> 3hp range, 1ph motors are more $$$. I have few larger ones now but they are heavy and take lots of space so I do not have many - space issues. The motors I sold were outside - I had no place for them in the shed.
Do not feel bad - if you need very specific motor you may (or I) pay for it through the nose. Just general motors are widely available. Heck, I expect to get few motors < 5hp this week (both 1ph and 3ph). Have to re-build my stock.
BTW, I have a large compressor as well - I have a 5hp motor on the pump - but it can take 7.5hp if needed. I think it is 445 as well or super similar. They look identical to what I have. I got the compressor few years ago - works like a champ. I replaced its 3ph motor with 1ph motor so I do not need rotary to have it running. mated to 80 gal tank takes lots of space as its horizontal. Compressors are cheap where I live - I paid few years ago like 300 or 350 for it with 3ph motor. Oh and I also replaced the regulator on that compressor from PA.