Definately would work - but I think that you'd really be lacking enough spring up front to control body roll/contact patch - what you gain in the rear you'd lose at the front.
There is a new set of springs - M-5560-ZXM - out for this year that are a replacement for the multimatic springs, but drop the car another 1/2 inch or so more than the multimatics. Also may be a touch stiffer as well. I'm putting them on my car. I think they are around $200 or so, so picking up a set to mix and match with your current springs is definately do-able and cheap. Not sure if they are available yet, but should be available by Jan 1. Check with Capaldi, McNews, CFM, or any of the other sponsors on the board.