I don't have pictures yet but i can tomorrow if need be. The customer has hired me to take out their interlock and level tamp and then reinstall. the reason being is that the driveway is 30 years old and is heaving a bit from where the van parks. the base is about 3 feet deep already so no need to take it all out. The customer wants me to use stone chips. Better drainage. Shoudl i use a 700 pound reversable tamper on the base material after leveling. then after laying block use 19 inch plate tamper or should i just use the 19 inch plate tamper? I have the job on tuesday to do so i would like some quick replies if you have suggestions.