i also have the same problem, i have 65 fastback 2+2 and i want to make it look like real eleanor... so the best way would be to buy 67/68 body kit, but i am afraid if the hood width is good or hood hinges fit. Also, fitting front nose (upper/lower) requires a lot of work with fenders.. and the worst thing is that deck lid is absolutely different as i can notice from the pictures.. and i have no idea if it is possible to fit all the rest parts like wheel opening flares or side scoops.. so in your place i would go to the shop and measure this kit on the car... and than please write the comments
