So I ordered up some orings to make some kits and now I have tons of orings left over. It is basically $2 for a single kit of orings for a complete RTI prophet. I can do one kit for $3 or two kits for $5 shipped in a padded envelope. These will come with .22 cal pellet probe orings so if you have a different caliber, that is the only oring that differs. I also have the regulator orings included. These were purchased from mcmaster carr so most are in the 100 ct bags. If you want a copy of the schematic for priest/prophet or regulator I have those as well and can include them.