Hey !
That's exactly what I wanted to try for Perpetual Blue : I can't make it selfbootable. I try Echelon's tutorial, Bin2Boot, 45000 tirck, ...
So I wanted to make a 1st session with all my files (execpt 1st_read.bin), then make a 2nd session (with 1st_read.bin) and my ip.bin between these 2 sessions.
I didn't have time yet to test that.
If you manage to do it, let us know !!!