Where to get a fuel tank????

Hi,
I've been searching for a replacement fuel tank for 2002 tacoma 2.7 xtra-cab 4x4 auto. Why does no aftermarket co. make one??? Does anyone have any tips for a used one? What kind of overlap is there on the application. So far it seems that regular cab tanks wont fit, but 4drs. will? What is the range of what will fit?
I don't want to spend $450 on a new oem and I've narrowed down the original part numbers down to either 7700104090 and 7700104170. Anyone know the difference between those 2? The online description for both is identical.
What does someone do when they need a tank??? I'm in rust central in Western NY.
Thanks for any replies,
Ken

 

gastanksusa.com has one for about $100 less than the OEM offerings

 

Ken did you ever find a tank? If so where?

 

Actually, I took the tank out, cleaned it all up and sealed it with ample coverage of "seal-all" sealer. It was quite laborious but I had the time and was unwilling to spend around $500 for the factory tank. So far so good.

Ken

 

I just ordered an oem one from ToyotaParts4Less.com. I thought of going aftermarket in order to save $100 or so, but figured it wasn't worth the hassle if fit and finish wasn't correct. I also ordered a new filler neck as mine is getting a bit crusty.
I plan to apply POR to the top of the tank and filler neck before installing.
Hope this ends my evap issues.

 

I haven't checked for the Tacoma, but Napa has been good with fuel tanks on past vehicles.