I use a 4000 pound shore station "vertical" lift as well.
Make sure you have the right bunk kit, if it was set up for a different boat (or is brand new) the cost of the rails could suprise you. Make sure that is part of the deal or account for it. Side rails on a lift are helpful but not necessary. It is up to you wheter to get a canopy or not. With a canopy we don't put the boat cover on, we just crank it up all the way.