[@BCTheEntity] Hmm, okiedoke. 
I don't want you to add that it's self repairing. Although benign, such an enchantment would be very beneficial to a character, especially in this setting, and that would have to be an upgrade (im assuming you mean making the robes self repairing, because then it's still your armor, just your magical armor). It's true that it isn't a difficult enchantment in general, but I don't think it's a small thing. I was looking at your armor as just a set of robes, because if it wasn't I wouldn't allow it. Not only is it a set of platemail, but it's also enchanted robes (you can wear as much plain/padding/disguising clothing that you want, the "robes" are the clothes that are enchanted), and that kind of sways me a bit. The platemail is at least medium armor, if it isn't a full set, and the enchanted robes are light armor. That's 5 SP; if it had been just the robes that act as strong as platemail, then it would just be upgraded light armor. 
How much platemail is he wearing? If it isn't too much I'd just let it slide. A plate out layer and helmet is what, a helmet, breastplate, fauld, cuisse, and placard? The weapon change is also no problem. So like from just a mace to a flanged mace?

[@gammaflux] Yeah sure np! You'll notice I link to the original character post now so you guys can edit all the time without asking me to change it if you just edit/reword stuff.