BC Coils with no caster adjustment... HELP!

Got my 2003.5 MSP and love it, but my BCR coils don't have adjustable caster and it pulls right. Short of machining a new top mounting plate, what are my options? BCRs are marketed to be modular but I asked some of the guys running the booth at GridLife South and they said adjustable camber/caster top hats CANNOT be swapped on, and "they don't make 2-way adjustable top hats for that car" which really meant "I've never heard of an MSP, all I know is Hondas"... HELP!

Are you sure the caster is what is causing the pull? Have you adjusted the toe? Unless the coils are installed incorrectly or the car is not straight the caster adjustment should be as it is with the stock struts.