US Highway Post Office Cover Catalog Hpo

I was looking for a directory or listing of highway post office routes, of which there were 410 and came across a few publications on HPO covers. One is by the Mobile Post Office Society and published in April 1987 with 67 unbound pages with illustrations on the Phil Bansner website for $10. Another one was on Jim Mehrer's postal history website that had 42 unbound pages for $18. They each seemed to have 1st & 2nd Trip details of each route.

Does anyone have these in there reference library? I am just wanting to make a list of HPO's that traveled Route 66 which only went thru 8 states.