Looking into swapping a Mark VIII trans. and engine into a 95 bird LX. Is this even worth the hassle, or should I just stick w/ the stock 4.6L and mod it? No real info on the condition/year of the Mark parts until Sat., but I just wanted to get some imput on this from you guys and see if I should drop the money for this combo or not. Any bad things w/ the Mark engine that I should know about?