Former ASE master retired since 2003. Haven't wrenched on a major project like this in years. Would like to help out a good friend who has 1989 Chevy S10 4x4 4.3-liter v6. The vehicles body frame and drive train are in good shape, but the engine is blown. Found a Mitchell rebuilt long block that has been sitting in the machine shop of a local auto parts store for several years w/matching vin and was able to purchase it for a song... I need to get some type of idea on the flat rate for R&Ring the engine and long block before I get in over my head. Any help would be greatly appreciated.