there is an excellent travelogue called "Sparring with Charlie" by a guy who decided (with no previous experience) to ride the length of the Ho Chi Minh trail.. i forget the author's name, but i'm sure you can find the book somewhere.
BTW, i'll see you there, i'll be there this fall...
1950 Argyle Ave. #10, Hollywood, CA 90068
PO Box 460816 San Francisco CA 94146
\'89 R100GS \'84 V65SP \'83 R80ST