J Tech Marine Service

I had some work done to my Mainship, and J tech's Mechanic (Jim) did the work.  Initially it seemed like a good deal, and a quote for replacing an engine and 3 cutlass bearings was $5,233.  It took Jim 50 days in the yard, and at the end I was presented a bill for $10,209, which included 2 engine install charges because he ordered and installed the wrong engine, so he had to install another one.  I have paid $7,000 and I want consideration for the insane time it took for this work.  I had to pay$1,230 in moving and storage fees during the last 30 days.  The mistakes Jim did were: Recommended replacing the Port engine (works fine), Recommended draining all fuel (180 gallons - not needed), Did not replace temperature sensor on new engine, did not put anodes or cotter pins on prop shafts, Messed up the retaining nuts on prop shafts by drilling out the broken bolts with a bit that was too big.  I was shocked that he ordered, assembled, set timing and put the wrong starter on the engine.  I am a very easy going person, but the lack of mechanical skill and Jim's attempts to bully me into paying before the work was done just was too much - charging twice what was estimated, working on the boat in the yard for 50 days and installing the wrong engine, and expecting me to pay for his mistake makes these guys the WRONG choice!