I have a set of wheels that can move under their own power now!

It's WIP name is Mr. Me and it has 2 1000rpm motors off of ebay and 73mm Banebot wheels.
A few questions:
1) This bot shall be a servo powered lifter. Would using a LiPo battery be more hassle then it's worth? What would you recommend? The drill battery is only there to get it moving.
2) What would be the easiest way to make a removeable link for a BW if needed? In my mind it would be a finicky thing that would be a pain to put in/take out without it being big enough to be a target.