I have a 2002 Auto 3.8L V6 with over 100k Miles. My friend has the engine of a 98 GT with a 4.6L V8. My car is still in very good shape and I have spent alot to keep it that way. Roughly how much would it cost to do the swap if I am getting the engine free and labor is going to very cheap also? Also would it be cheaper/more expensive to switch to a manual trans? I would really like to keep my car but if the cost is too high then I will sell. Please help...