I am not sure how you are going to mask the finish and soak in acetone at the same time. I do not think that just wiping it on will remove/loosen much oil. Have you done that before?
I had already removed the finish off the LC stock with the application of foaming crud cutter. It took 3 sprayings and some soft brushing but it cleaned up real nice so the kitty litter thing is just mainly for fun.
I do store all my shotguns barrel down.