Those skills are entirely useless to me. You need 1 of the higher up mats and you only get 1 of the lower mats in return. You should NPC the higher materials and then buy the lower ones so you get more out of it
How is money related to this. I really doubt he would pay you money to decomp his stuff when he could just create a character and make it learn the skill. You also said that you've never used it before which means that you really don't care about the skill therefore you don't need exp