Original blazer gas tank filler wanted

[Thealien]

The PO installed an aftermarket 30+ gallon gas tank in my Jimmy. During the installation they actually cut a 4 inch diameter hole in the floor about where the sending unit is !! I am going to patch the hole and put an aftermarket/stock tank in.

I keep reading that the filler neck on these need to be replaced with the one from the stock tank to make them work/not hit the body mount. Anyone have an old gas tank they would cut off the filler neck from leaving the two bolts and flange so I can put a correct gas tank in and sell it to me?

I need this for a 1969-1972 tank/blazer Jimmy