I got as far as being able to chroot into the saved file. Then I added four small *.desktop files to /usr/share/application following instructions on an LXDE page. A total of 1000 bytes I thought I could sneek in without exceeding a CD's capacity. I made 4 links under the home Desktop directory. then executed the last two scripts to write the CD iso. When I tried to burn it my software complained it was too big. I checked the size of the remastered.iso file it was over 838MB. I only added 1KB. I plan to try again by removing some software I don't need, like iceweasel, but if I am already 138MB over allowable that's going to be a little difficult.

Any suggestions other than using VirtualBox?