Just do the process you normally do with the proper weight of grams and hope it all works out. You are presumably doing a free service for your friend using the valuable skillset and experience you have gained. They have no room to complain if the bud they supply you is mid and makes mid edibles or if the bud is fire and they end up sickly potent.
Does smell signify potency? I think theres a correlation at least some placebo where you think sticky dank flower is more potent so it is. You can put some humidity back into the flower to try to bring back some smell and stickyness but if youre cooking it anyways no point.