avoiding hot tank fees

I charge a flat fee to remove cam bearings, freeze plugs and hot tank a block. I'm not going to put someone's grease covered block in my boring machine and leave lots of metal shaving stuck in the grease so some body can tell everyone what a bad job I did. When you get your block back from any good machine shop it should be ready to be washed with soap and water dried and install the new cam bearing and freeze plugs and get ready to build an engine. If someone wants some thing different they need to buy there own equipment and do it there way. Just my two cent