Tub refinishing

took my grody shower doors off and was going to clean them but i ended up tearing out the doors and nasty frames completely and am going to disposable shower curtains...So now my tub portion is bare of the framework and is showing its 1954 production date. Its already been redurfaced once but it looks like paint as it came off pretty easily where it was pealing off with a putty knife to expose the original finish. I want to resurface it myself and have a kit that has 2 parts of surface prep (sodium bicarbonate crystals and citric acid crystals) for a 2 step prep, then a 2 part epoxy paint and a few little rollers. Im reading the directions and it says 2 days dry time min before use and 5 days cure for epoxy. WTF, do you do this the day before your vacation or something? Anyone have some tips on other products?