70, I went the Pacer front end route. Positives:
1. Gives you all the goodies...rack/pinion steering, disk brakes, IFS, sway bar.
2. Fits in quite easily. You get to use all stock mount points, ie. the rad.
3. The Pacer front crossmember is a beefy unit but requires a certain amount of trimming to get it ready for installation.

The negatives:
1. The front ends are getting harder to find but they can be had. I pulled the unit paid $225 for a front end from Dr. Mopar near Austin.
2. New rotors and power rack/pinion unit can still be had but aren't cheap.
3. I had to put in stiffer coil springs to give the front end a little lift and provide decent tire clearance with the fender opening.
4. You get the 4 1/2" "small **** " lug pattern which will likely be different from your rear end.

Would I do it again? Yes. I've got some digital pics at home of the installation if you are interested in this option.