1 think to add with buffing up acrylic dont stay in the same spot for to long or it will buff through or leave burn marks you have to work in sections and work the compound polish dont push on the buff let the weight of the buff and the polish do the work. but just a quick thought it would be easier to use 2k paint as you would only need to put 2 coats on and it will stay glossy unlike acrylic which will dull off and you need at least 6-12 coats if your going to cut it back and buff it.
im a painter by trade as well so if you need any advice pm me and id be happy to advise you