I assume you have noticed that the pick up tube hit side of tank, and had installation problems. So that's why you want to bend it straight. Can you shorten it, bend it toward middle of tank and add the sock ? Be careful that the float hits side of tank
. The reason is that the flange only fits on the tank one way due to stagger of bolt pattern. This causes interference with pick up tube and float when using a truck sender. I remember trying this and bending the tube the opposite way and trying to make a loop in the float wire. Got all goofed up.
Maybe adding some sender flange holes would be the better way, so as to be able to rotate the sender and the tube and float away from the tank wall.
Best to follow the original design and have a new filter sock.
Jim Carter shows a sender for panels, but every time someone checks, they don't have it. https://oldchevytrucks.com/1955-1959/mechanical/fuel-system/gas-tanks-gas-tank-items.html?p=2
It is listed as out of stock.
I also experimented with removing the rheostat box from a new sender and installing on the old. The box is held to it's welded-on plate with bent tabs which I think I was able to get loose. I think all of the guts of the rheostat are attached to the can. The "cable" comes off the flange and transfers with the box to the old sender. Can't remember what my final result was. The wiper and coil is delicate and easy to screw up. I was going to perfect the box transfer and make a million dollars.