[nass]

before you even think of trying this I would see if and how you can properly and safely jack the car up atleast 3-4 feet to give you some clearance under the car to move and what not. Having the car only inches above your chest will only piss you off when you can't reach things. Like Hardkore said you're WAY better off getting a garage to do this for you or if possible try to find a "garage for rent" place where they provide the hoist and you do your own work. I know there are atleast 1 of those places in my area.

Good luck