On my first Sprite, I built a cage that held not only the cell but also had mounted the fuel pumps and filter housing. I used a four pin trailer connector to make a quick connect wiring harness (two powers, two grounds). Four bolts, one AN6 fitting and on electrical connection and BOOM...it was out of the chassis. Pretty slick if I do say so myself. Should work for any size cell. I used 1" square, aluminum, tubing so it was pretty light too.
Dayle