Anyone have or getting a custom tank built?

[chevyman 68 C/10]

I gave the demensions to a friend for a custom built fuel tank to go under the bed. He is looking for salvage aluminuim plate to get broke and welded. I wanted stainless but you don't find that very much in salvage plate and I could not afford the price tag.

The poly tank just did not look like I wanted and we had trouble with factory Dodges at work springing leaks or burning a hole in them.

I also wanted to put the pump in the tank so that is a bonus of having it made custom.

My question is have any of you done this and how did it work out-sugestions please