I have two spare NASCAR oil tanks. All should be clean and functional, but I have not used any of them personally. My recollection is that they are all about 28" tall but I'll verify that later tonight.
1. 9" diameter tank with 12 AN inlet and outlet bungs. This tank is completely bare and can be outfitted to your desires. It is a solid tank and does not split open. No real flaws to speak of. $120.
2. 9" diameter tank identical to the first, but with all the trappings including brackets and heaters. In great condition. $260.
I think this is all correct but I'll verify all this information when I get home tonight and add photos then. The tanks are in Hendersonville NC, but I can ship at buyers expense.
I do have one more tank that I will have for sale decently soon as well, once I make sure I don't need to cannibalize any parts off of it. It's a 8" (I think) diameter tank with wiggins-style ports. Includes all brackets and heaters, temperature sensing probe, etc. This tank can split for easy cleaning, which is also nice for indexing the inlet and outlet the direction you want them to go. This tank does have a dent on one side near the split but it still seals perfectly. When I bought it it was noted that it was recently drained and flushed and it has new O-rings. If I don't take anything off I'll ask $250.