Luis A,
First - congratulations. I'd love to see more pictures of your car.
Second, you commented about leg support when driving long distances. I do not know what model year you have, but if it is one of the earlier cars (73 or lower), you may be able to find a good solution. The '74 model cars have a seat bottom that is identical to the other years in all aspects, except that it is extended by about 1 1/2 to 2" toward the knees. This gives better thigh support.
The '74 I bought had aftermarket seats in it, and after about 4 months of looking for replacement OE seats, I bought a pair of '74's with upholstery and padding that was in pretty bad shape, and a pair of earlier seats from a European delivery car that had been in storage for a long time (only the seats, no head restraints). I'm combining them, and will install new leather on the front/sides of the earlier seat backrest padding and full replacement of padding and leather on the '74 seat bottom frames.
The upholstery pattern, is of course, different on the '74's from the earlier cars as well (but, if you disassemble the seat bottom and install new 'lengthened' upholstery, it will be easy to see how you can make the 'pluck and tuck' look appropriate). Interestingly, the euro seats have smaller tubes for the head restraint posts, so I am using the '74 fiberglass backrest components with the early seat padding - perfect fit.
I suspect it won't be easy to find the '74 seat bottoms, but if you can, I think it might reduce the pain problem for longer drives.