Yet another very nice write-up, great job.
Its funny what you said about the bolt (I think its called a banjo bolt, not sure though) that holds the vac line to the top of the tial bov only had one hole in it, I could have sworn that my tial had two in it.
: It would have been nice if the UR kit used t-bolt clamps also so you wouldn't have to worry about them blowing off, but I guess those are good enough if BMW used them.