Hey Mike ...
Wow, I must say I'm just a little envious! No, only kidding, as I've got two nice machines myself. However, that is definitely a lucky find. Very cool that it's been in the same family all this time, and I absolutely love that it has the "Sold by Maytag Calgary" decal, since Calgary is my hometown!
Regarding paint - I used spray paint - Valspar's "Leafy Rise", from Lowe's. It was the closest match to the original grey-green that I could find. Some years, the color was pure grey. I believe you can find the paint codes on the Maytag Collector's Club website.
Polishing the crown of the tub is a lot of work, but the results show that it's worthwhile time spent. First, I do a hand sanding with very fine sandpaper. This is followed by buffing using a cloth wheel attached to a hand-held drill. Jeweler's Rouge bring out the mirror-like finish, and finally a hand buffing using "Mother's Mag & Aluminum" polish.
Feel free to contact me anytime using my email listed on my profile. If you have any urgent questions, we can always talk on the phone, too.
Curious if the latest acquisition is in working order. It certainly looks in fine shape from the pics, and it's fantastic to have the original Delco motor!