You need to make sure you bench bleed the master, if your master is bled correctly, you'll need to pump up yur accumulator. If you did that and it's still cycling, check your switch.
mechanic in the plan??
just throwing parts at it will get expensive, really fast...
The ideas posted in the 2 locations should help educate the mechanic.
Also, look at http://www.vortexbuicks-etc.com/ and see if Steve has posted PM info.