Hi Mark
Yes I have the plastic glass channel
I'm sure I also have the m shaped things but will have to dig much deeper to find them (if they are still there). If not these can easily be made from angle iron cut into shape until originals can be found. Checked Out ipdb and noticed I've found the wrong shooter plate will take a look for the one you need tomorrow if I remember.
I definately don't have the playfield latch thing I'd remember that monstrosity sitting around the garden shed lol
If you don't hear from me tomorrow please shoot me a reminder to much shot going on at the moment.