custom mobs with custom armor models

Hello!

how would i make my custom model mob (made with blockbench) be able to wear and equip my custom armor (not biped) i would like to make a tamable mob, that once tamed you can put armor on like a horse.

preferably with no menu or gui and with a simple rightclick with an item or another armor piece to remove/replace the current armor.

on that note, how would i make it spawn with a default armor that i can use an item on to remove, and then make it wear my own custom craftable armor?