Don't know if this is the kind of answer you're looking for, but I outlined Lex' will in part three of my (accidentally multi-year epic-length)
Road trilogy (parts
one,
two, and
three. The bit about the will is toward the end of part three.
Warning:
Lex might not be the kind of person you'd expect him to be.
If you want to read the feedback to each chapter as it was posted (as well as a fake ending that isn't in the archive), you can search the message board for the posts on the Fanfic TOCS board with my name in the search text, looking only in the header. You'll need to blank out the date limiter, too, so it will pick up everything. (I don't know if that's the intended behavior or not.)
If you do read it, let me know what you thought.