So i just bought my first diesel. It's a 97 f-250 7.3 5 speed with 145k on the odometer. Its as clean as can be and bone stock. Want to do some upgrades. I use this as a somewhat daily driver and for towing around 10,000# horse trailer with horses loaded. Was wondering what upgrades i should due and n what order. Not looking for ridiculous amounts of power and would also like to improve milage right now its around 15mpg. Dont have an endless budget so will be a one step at a time upgrade.thanks for any and all help.