Okay, she's in. I ended up screwing the filler neck to the fuel door and wiggling the tank from underneath. The fun part is I foresee at least 2-more tank droppings on this car in my lifetime.
Oh, and if anyone was wondering:
This tamper-proof screw set from Classic is a bit of a turd. At least, the socket does not fit well at all and the screws were a bit oversize. It's hard to get any sort of leverage and the socket tool looks deformed after the first use. Poor tool to fastener fit and the socket seems quite soft. The screws being oversize is probably a good thing considering many old cars may have boogered up holes, but I ended up having to drive hex head self tappers of the same size through with my impact before I could get the TP screws in.
Thank you all for chiming in.
