Any plastic replacement Fuel tanks for Toyota pickups?

Like the title says, does anyone know of a place the sells plastic replacement fuel tanks for 91 model toyota pickups?
The places I've called all say no. I've tried to purchase a new metal tank twice, both times they claimed the tanks were for 4wd model but both arrived to shallow for the new sending unit which is the factory replacement. After calling the manufacturer back, both said that's the only tanks they had.

As a side note, vinegar and water really cleans an old rusty tank!
Baking soda to neutralize then rinse with water. Quickly fill with fuel and add 2 stroke oil to the tank every fill up keeps things lubricated.

 

Exactly what I thought. But a quick Google search provides a plethora of info and people swearing by it. Now I don't usually go with the crowd but my 91 is a beater with tons of engine troubles. So this is the perfect test vehicle for it, you just can't kill this thing.
0 compression in the #4 cylinder. Rusty fuel tank, leaking injector, horrible wiring. Just a money pit, but as a farm truck never on black top you can't ask for better. Roughly 3 yrs running in this well below desired condition.

One day possibly a 3.4 swap or 350.

 

Nobody makes a plastic tank, but you can get a steel replacement..

http://www.lowrangeoffroad.com/yota...and-3vz-fuel-tank-17-gallon-shortbed-4x4.html

 

That's actually the 2nd place that I had ship me a tank. Called in my order to make certain I got the correct info to them, as opposed to ordering online. Received a shallow 2wd tank. Called them back all info was correct. They then compared their 2wd and 4wd tanks at their warehouse. They are both identical to the 2wd descriptions. But neither matches my stock tank.
I had previously ordered a factory replacement sending unit, which matches my stock sending unit, as it should. I was thinking maybe the previous owner swapped the tank but my dimensions match what their computers say it should be. It's confusing to them but they say they never had that issue. Not much call for replacement tanks I guess.
I thought about just keeping their tank and getting a new sending unit but ditched that idea.

 

According to Rock Auto, there are four different sizes. Select the correct part by your VIN (either RN80, RN85, RN101, or RN106).

 

I haven't tried them, but have used my vin at the 2 places I've tried. The problem I've run in to is that the item description that both places had was incorrect compared to the item in the boxes. The first place sent me 2 incorrect tanks, both with the correct item description. Yet the tanks didn't fit my truck. The 2nd place sent the wrong tank, yet correct description. Luckily I has placed my order via the phone and documented the contact person. So we hammered out the issue. He said he'd call back whenever they got things sorted out. That was atleast a year ago.
I know someone has the correct tank, in metal but I was hoping to find a plastic one.

 

Rockauto does have the correct picture, normally it's just generic pictures for the 4 tanks.