I did a google search on "national electrical estimator" and Craftsman books came up. Their 2005 National Electrical Estimator is $24.99. A much better buy than an out-of-print and out-of-date used book. This is a decent book with good estimating information beyond parts and labor lists. You could use it to create your own sales book. It also has some assemblies, which most of the pricey estimating software packages don't.

Dave