Tom Yum,
I don't know if you ever found what your looking for in your pursuit to understand the fighter psychology and mentality but you, and anyone else interested in this neglected aspect of MA, might want to check this sight out as well:
http://www.hoplology.com/about.htm
It's a Non-Profit Orginization dedicated to the study of the Combat Mind Set. IMO the website is a bit low-tech but you may be able to find something on the site or in their recommended readings as far as mental attidute goes...