in the end, it all depends "how" you want to get them (as in how you wanna play ur game) and how lucky u are
dun worry bout the recipes, it's the L75 main item u should worry about. Besides, if u want the "undergarment" achievement, u need to wear full set L75 uncrafted.
but if all u want is jz savage set, then as azataso said, farm hard, save money(gold) and buy.