I used Legendary for my 69 A standard interior and had to modify it a ton. They only offer a version that is based on the deluxe interiors. PUI seems to be the same! I think this is were many say they are oversized. I would suggest looking at the P&G offerings. I have seen and touched the 68/69 foam and it is cut and formed very close to original standard style. They do not seem to offer a deluxe version.
That being said for your year, you did not say, 65 I assume? Look at their catalog closely and you may find a shape that looks closer to your original foam.
