Don Garrett

so I had to get a gas tank fabricated and my fabricator is wondering about the fuel gauge system and frankly so am I. Here is a picture of the top of the tank where the gauge line, ( the small one ), and a picture of the gauge. Thanks for your input.

here are a couple of pics the inside of the tank is really bad so...

looking for some direction... I dont think the tank is salvageable. Are there any out there?