Gen 1 ABS Pump-Module

I'm considering replacing the ABS pump/module in my 04. The valves appear to be stuck operating the rear brakes. While this normally is not a huge deal given how lightly the rear breaks are used, I however pull a trailer. I like to tour and I carry a good deal of weight around, and it's not a good idea to have that much weight pushing from the back in emergency braking situations w/o a functioning rear brake ABS system. So, if anyone out there has a good functioning unit they are willing to sell for a reasonable sum, please let me know as I may be interested. Send me a PM or something.

Best,

Bruce