It's Easy. Just get the tires 4-6" off the ground.
Unhook the vacuume purge tank line. Remove the sender/fuelpup to connector plug,
Support the tank on wood, with a jack. Remomove the filler nect screws (4, 3 up top and 1 near the tank).
Drop the tank by removing the 2, 13mm (I think) bolts...