I made an AND logic gate that is entirely reuseable and can't be overwhelmed as far as my testing suggests. There is also a bit at the end with a pushable cell and generator and is entirely removeable, as its only function is to center the output mover. Anyways, here it is:
MP1;a;a;:d.j-:9p-.I-:4p$-:1w-:7w-:4oZ-:3w-:5o-1-:5w-wk-:m;;