disk brake conversion

I have an 89 dx sedan and want to put 4 wheel disk brakes on it, but cant find a conversion kit anywhere for the rear brakes. Just wondering where i could find one.

I would help you find more sites to help you out but I'm at work and don't have alot of time. . here are 2 sites .
http://www.rglobal.net/users/jgray/How_To.htm
http://tjshondas.20m.com/rrdisc.htm

go to a junkyard, and pull the entire rear trailing arm/disc assembly off a 90-93 teg. I think its only 5 or 7 bolts if i remember right. also get the cables for the e-brake. Take the stuff home and bolt it right onto your civic.