I prefer the tank in its original location to preserve trunk space, but the V6 engine interferes with the tank.  You’ll notice that there’s a fair amount of empty space between the side of the tank and the inner wall of the side of the car, so my solution was to cut the lower outer corner off the tank and slide it over a couple of inches to that it sits over the frame rail.  Capacity is reduced by about a gallon or so, not a big deal for me.

TIG welding is recommended to minimize the chance of leaks.  I also coated the inside of the tank with gas tank sealant, which will also help protect the tank from rusting.  Fuel tank mounting is shown below: