A pin would be good Karl, but there isn't really enough 'meat' to drill into.Regarding the prop, could you pin the two parts together then fill the join?
Assuming you have both parts.
Did you mean BMF Andrew? If so then yes, it's very good. It's very thin so doesn't obscure the frame, and being metal it can be burnished down with a cotton bud. I usually finish off with a cocktail stick into the corners. Can be a bit tricky to peel off though.I've heard about tape being used but never tried it. Does it work very well?
Thanks for your comments chaps.
Pete