Big Tag
Yes, I too would recommend a "Large Capacity" Maytag. 308 or up for the older Tags.
Specifically:
A308 - 1 Speed machine, basically the big tub version of the A108
A406/7 - "Fabric-Matic" machine, 1-speed, but with cycle modifiers that alter agitation and spins. Auto warm rinse on HOT setting
A408 - Same as 406/407 except with 4 water-level buttons (C/C, W/C, H/C, H/W) as opposed to 3 of the older model.
A606 - Lowest model true 2-speed machine. Early ones had a red pilot indicator over the timer. A great machine and popular
A806 - Top of the line model with a dial. Backlight fluorescent console, bleach dispenser, pre-wash and soak. Really a beautiful machine
A906 (good luck!) - All push-button machine, no dials. This was the TOP of the line machine. Very rare, only made through 1970 and controls provide less flexibility than the timer controlled 806.
At least that's a good start for the 1966-1980 Center-Dial Tags, these are all the big-tub models.
-Tim