Hello Ron, here is a link to the stage 3 suspension package for that chassis : https://www.ultrarvproducts.com/Stage-3-1997-2005-Ford-F53-Class-A-14K-18K-GVWR-Handling-Kit
The Koni shocks would be the biggest improvement to ride quality, the other products listed will help with the steering and handling . We would also recommend weighing the vehicle at all 4 corners and setting the tire pressure according to the tire manufacturers inflation chart ( can be found online for most major tire brands) .