I don't know about a MTX but have intimate knowledge of an ATX install. It is not as hard as you might think. It took me two days of work about 6 hours a day. I took a few breaks here and there so 12 hours is an over estimate. Just make sure you have all the fluids handy (i.e. ford mix and other fluids)
As far as a shop charging a grand...bullpoop. Amcoo wanted $600.00. I assume an auto is more work (extra cooling lines etc.)
Most of all get a good manual and have fun. When I finished, started up the car, and it actualy drove down the road I was thrilled. NOt onl did I save some money but I feel I "know" wy car better now.
