Can you clarify a little what you did with the rear of the truck? At least give us some idea of how much it dropped it. From the description you gave it could be anywhere from an 8 inch drop to a 5 inch lift depending on what the "flip kit" is referring to and which Explorer springs you have.
As for the front end, installing air shocks won't get you an inch drop but it could get you an inch of lift or more. Were you going to remove the coil springs and then install air shocks? If so very bad idea, air shocks are designed to assist the coil springs not replace them. In fact the only time that air shocks might be a good idea on the front of a Ranger is to help with the added weight if it is pushing a plow or some similar task. I'm going to assume that you are working on the 91 5.0L ranger you have listed. You only have two real options to get 1 inch of drop on front of a Ranger those are Splash springs if you can find them, or cutting a coil. IIRC a number of companies make 2" drop coils if you can handle an extra inch of drop. The absolute best way to lower the front of your Ranger is with drop I beams, which are only available in the 3" variety. If you went this route you could then install new stock height progressive rate springs to stiffen up the front end some. New springs, polyurethane bushings, very good new shocks, and a thick swaybar are the best and possibly only ways to stiffen up the front.