SOR also makes the missing knobs for the bug vents, but for correct reproductions get some out of Oz from @andybudge . The flap for the vent is also correctly reproduced in Oz and Andy should be able to hook you up.Great intel. @cruiseroutfit …. Take my money
Be very careful when undoing the nuts on the vent, the little screws love to break and make a note of the sequence of how it comes together.