Hey LowEfficiency, my plan is to use the Maytag LoadSensor agitator base. If it isn't an optical illusion, the base column appears to be narrower than the Super Roto Swirl agitator...(actually, I did not think about removing the base)...if so, I'd cut up to and off where the 'FLARED-funnel shape' begin/ends at the bottom of the LoadSensor. The LoadSensor agitator base diameter is 12" and the Super Roto Swirl is 13". So I believe there will be a little overhang...not very much but, some.
Hmm, creating my own adapter without the Maytag agitator, that would be AWESOME. Except, I wouldn't know how to begin. Where could I go to have an 'exact-fit part modeled and 3D printed' created?