Hey supercivic86,
Grab an '87 Prelude master cylinder, not an Accord.
Pull-a-part is a great place to get parts! I sometimes go there just for fun! One thing that I like is that you can wander the yard and mock up your swaps before you attempt them on your car. Thats how I figured out that the Integra swap really would work! If they don't have the parts you need, check with Acura-Honda U-FIX-IT in Woodinville 425-481-1414. You can't pull the parts yourself but you can usually wander the yard with them. Their pricing is not as good as Pull-a-part but they are reasonable and you can usually hagle with them.
Contact me if you need help since I am also in Seattle.