What fuel cell fits nicely in the spare tire well 70 Dart?

I had one made at a fab shop to my specs.It holds 16 gallons (per the math). its got an efi pump and VDO sender (speedhut gauges).I reworked the side fill to come in just below the fold down panel (doesn't apply to you?). I had the tank "floor" angle up at the rear to not be seen from behind . the steel straps are secured to the inside of the well and plated where nutserted. I will be installing a top strap after paint. I know its a different car but I believe the tanks are the same. Tank cost me $300 for fab shop to make with baffeling and leak testing and welding a plate in the fuel cell fill ring ,so I could flip it over (to recess the fittings ) and hang the pump from it. Also tank sealer was applied.