Swap help

If the disc conversion in the rear is too pricey or has other complications, just be aware that most braking use is fine with disc front/drum rear. 10" drums can do a lot more than you might think and you should not be afraid to use them. Disc rears are good for the ability to dissipate heat more quickly but that is usually only an issue in very heavy use like road tracks or maybe extremely agressive braking use on mountains. You can only use so much rear braking before you get too much in the rear and screw up the F/R bias.

Using the larger rear discs seems out of proportion to me unless the rear pad sizes are suitably smaller than the fronts. The larger rear discs WOULD have more heat capacity which is good. But again, IMO, very few people would be able to really use/need them.

Nice looking car; with the mods, I expect the brake upgrade is overdue! Sorry, but the handicap tag seems uncalled for...LOL