I'm nearing the end of my poker table, just need to put on led lights. But I didn't do cup holders in the railing and now kind of wish I did. Is it possible to install them now, without taking apart all the vinyl and foam and unscrewing all the wood? Like if I cut through the vinyl and foam with a knife and then cut through two layers of wood at the same time with hole drill, I'm thinking it should work. Or am I risking destroying the rail?