This would be the perfect way to do it, dont get me wrong NOTHING IS WRONG WITH HAVING PERKS, but if they want realism and immersion, the LBD method for basic skills like armor crafting&repair, and tools was much better and then supplement with perks/books. Ideally a no perk system, but LBD & find books to learn system would be the most realistic and natural progression BUT that would kill alot of good balance aspects of the game, or theyd have to be re-coded which could be difficult (IE: Well insulated perk would be a nightmare to try and code to show resistance to elements naturally