SPC is the only company that makes the rear arms yet for the 03 accord. It's part # 67290
Unfortunetally with coil-over adjustable kits - the camber will always be off every time you raise and lower the car any. You should have the parts installed and alligned for the ride height you will use most frequently - and mark that on each coil over so you always get it back to camber spec. after you've done riding real low - or high for that matter.
I bought 1.5" drop all around Sprint Springs - and having everyhting put in Mid this month (May 16). With a 1.5" drop i need about a 1.5 degree positive camber adjustment up front, but the two parts SPC offers are either negative 1.5 to positive 1.5 or 1.5 to 3.0 (for larger drops) it sucks that mine si right in the middle of th two - so I can't tell really well to go with either or.
I'll probably go with the larger drop set though, for when the springs settle in, if any.