http://www.fourthgenhatch.com/reardiscswap.html
Thats my How-To on the rear discs. Its probably the best one you will find on the net.
However I doubt you can do it since you have rear axels and unless you someone modified the integra trailing arms to fit your axels in then it can't be done. But I think the Wagon trailing arms were unique to the Wagon only so I think you out of luck.
If you want better braking get DOT 4 Fluid, Stainless Steel Brake Lines, and good pads and rotors and that will help a lot.
Rear Discs do help in braking, after my swap its much better.