I would not worry about getting it clean...it will be hard without the pumps running. If you have the fine grind pool salt, go ahead and add it...all around the pool. Other salt is ok, but stay out of the pool so you won't step on it and scratch the print on the liner. Cya can be soaking in a sock as well. You might need to go ahead and add some bleach to keep the nasties away until you have enough CYA and salt dissolved in the water as the temps are rising in both the water and air. You will have to distribute that around the pool as well. (Some brushing here may be in order!!)
There is not much that it will hurt to add, as long as it is well distributed (except maybe Mur. Acid - stay away from that until the pump is going...), and you do things one at a time. Just make sure you shoot for about 80% levels and sneak up on the final dosing. Don't add the additional until you are SURE that all chems are totally incorporated in the water. You don't want to have to drain the pool halfway because you jump the gun on adding everything or have a miscalculation.
Only things I would add at this point BTW are salt and CYA, maybe some sodium bicarb (look for a 50lb bag at the local farmer's co-op, it's a cattle feed supplement), and some bleach to get you started.
Oh, and start your pump on RECIRCULATE on the filter, get it running, then BACKWASH. That "new" sand will blow **** all in the pool if you don't backwash first.