Here is the tank I put in my '48 Plymouth, it is a near perfect replacement but doesn't have the trouble-prone pickup filter:
https://vansauto.com/product/41-48-dodge-plymouth-desoto-chrysler-6-cylinder-gas-tank/
A suggestion....if you replace the tank, replace the entire fuel system....lines, filter, hoses and pump. This is an area where if one component has gone bad the rest of the system is suspect. Just rip it all out, start over, and not have to deal with a car stranded due to faulty fuel delivery. No need to ask me how I figured this out.......