Looking for Eichler in So Cal and blueprints

Hi... my name is Will and I live in Anaheim, California.
My wife and I are both architects and we have loved the Eichler homes for a long long time now, but we wanted to raise our kids in a larger house with a home office, etc. so Eichler's didn't make much sense at the time. The kids are older now and we are looking to finally down-size and up-style into an Eichler in the Fairhills tract in Orange. If you are not familiar with Orange, Joe blessed Orange County with three small tracts called Fairhills, Fairmeadows and Fairhaven. The latter is the largest and probably nicest of the three, but we prefer the location and the setting of Fairhills. I love architectural drawings. I have been able to find some simple plans on-line but I would really love to track down some actual working drawings, construction documents, blueprints, whichever term you prefer, of any of the Eichler homes. If anyone has any or knows where to find them, please let me know...

Thanks!