Mustang Fuek tank

[legotech7]

I'm almost done with bagging my truck, and want to take care of one more detail. A wan to install a new rear mounted gas tank. I already have one back there, but I hate it. Its an after market blazer type tank. Its sit too low when I air out the truck and I think it just looks ugly. I saw a thread here where some one used and 65 to 68 mustang tank. Took the measurements and with a few mods, it will fit perfect between the rails. The tank I'm' looking at is from Tanks Inc. In the description it says it has an internal pic up tube, 3/8''. Can any one tell me if they are familiar with this tank and the internal tube and has anyone made the mod. to their truck and if you can offer any details on the install.

Thanks for any information........