Well first you would need a power brake bracket. You can get that from Keep-It-Jeep also. then you can get a new booster/mastercylinder from Parts plus for $150+30 for the core you don't have. You may be able to pick one up cheep but I wanted to make sure my jeep would stop. Then you may need an adjustible brake rod from Tri-county gear http://www.tricountygear.com . You can also mod the brake bracket to improve braking even more. If you do it you will need to uncoil the brake lines a little. they will also go in opposite locations. front is in back now and back in front now. anyway bleed the brakes and go.
The down side is that if your jeep dies you will have very poor brakes. I personaly would rather have the power brakes.
