This page has 8 links to information about money and bike touring. Not all of them will be of interest to you but several are about estimating the cost of a bike tour.

This site has google-type maps for all the ACA routes: http://tsteven4.qwestoffice.net/ . These maps take a while to load and may cause your browser to display an error message because they are so large.

Also, in my experience, couchsurfing is great in cities and larger towns but few and far between in less populated areas. You might also consider asking the police in small towns if it is OK to camp in the local park (be sure to find out when the sprinklers come on).

Have a great time,

Ray