What everyone has said so far is true. Once you have it plumbed and all the outlets installed just make sure you have a trap and a good water filter before the main outlet. If you do any painting with a spray gun, do not put an inline oiler in. It will introduce fine mists of oil to keep your air tools lubed and when you paint also add oil to the line and mix with the paint.
I always keep air tool oil handy and use a few drops when using an air tool, much easier.
One thing you should keep in mind. ......for every foot of hose you use , it will drop pressure by 2 lbs per 10 ft of hose. So when or if you paint and need to have a specific pressure at the gun, if you have 50ft of hose, you will need to bump up the pressure by 10 more lbs.