To be honest, I do not know. I haven't count and all depend how many rare and common will use in combination. I am talking power kits level 1 just recently crafted. I do not use power kits to level them up with parts. Also, not all parts cost the same to be level up. Some takes more than others.
in the case of epic, no clue at all. epics l1 never had I think. I had epics L30 granted by the game