Excellent ideas. Another option is multiple bags.....with no pulley/hoist the first time I did a 17 lb grainbill in a single bag lift all by my lonesome self it caused some anxious moments
Wet grain weighs a lot .
3 gallon batches I think is the sweet spot for limited space/time/storage/stove size etc. More beer for not much more time or effort.
And I agree pumps, siphons and kettles with spigots might make this hobby accessible to some with disabilities....