I need to keep my back seat and cargo area. I thought about it and decided to keep the fuel under the jeep.
It mounts under the tub, in the stock location. Not that it's a direct bolt in though.
You can buy the fuel pump adapter from genright to keep your TJ fuel pump.
I thought you had just saved me serious $$$ with this idea but I looked into it today and the adapter is too wide for the cell I have. The cell is only 6" wide.