From what I found, this is the driver side: 72155-S5P-A11
And this is the passenger side: 72115-S6A-J01
Also, here is a DIY for this install:
http://forums.clubrsx.com/showthread.php?t=838708
I do remember doing this and the screws that hold the actuator in place are ridiculously tight. Otherwise's it's a bit awkward to take out (due to tight spaces). If you're somewhat comfortable with DIY, it's something that can be tackled
Ouch, ya that shipping is a killer - it'd nearly double the price on parts, sorry to hear that. Definitely worth looking locally