1962 Valiant Gas Tank

I've visited with slantsix dan bout a ll this toad stuff! yes great guy. I admit i'm learing bout the peculiarities betweem the 63,4,5 darts, early cudas.... new c ritters for me.. dan knows of shop in K.C. that will make a aluminum tank off our old tank...... I can't afford that.
here's what I have found. the 63-5 gas tanks are like 16 gal, the toad is 12 gal. I measured the distance between the 7 1/4 and the edge of spare tire well on th e toad and a 64 dart that has no tank, distance is 13 1/4 vs 14 1/2 inches. that's 1 1/4 in difference....now...
I bought a tank off feebay for the 63 dart. it measured the same as the tank I bought for the 65 dart. classic industries show the 64 tank with different part number. I barely got the tank in the 63 in as it sat awful close to rearend. I will try to measure the tank in the 63 to see if it is a possible fit.
so I don't know right now what would work! LOL
another good member in here said he solved the rubber grommet, neck to tank, problem. he went to shop that had industrial type rings, and took his old one ( or measurements would work), and got a grommet. got a size bigger and smaller to be sure it would seal.....
no one ever said toads were easy!!??????? (that's why they are worth the big $$$! LOL!!)