Not sure if this is worth much, but I have a Carbon Sebimoto RC45 fuel tank. Identical to a Superbike Kit tank but in carbon. Etch primed, it has no cutouts underneath or pipes fitted except for the breather pipe in the top.
Cap is a quick release but no O ring on it.
I's on Ebay as well but probably would suit a replica VFR builder most as you can fit a different pump or tap to the bottom.
Rear mount is just a pair of threaded inserts so you'd need to make a mount too.
If anyone wants it let me know.