Drill jig helps locate the bolts to mount the prop. Unless you can find a prop manufacturer that pre-drills the props you will need for the best results.

CA = Columbo Anderson or Composite ARF?

Ignitions battery and switch, think about a smartfly with engine kill for this..

Muffler, cannister, or pipe (header for latter two) this also goes back to CA question as a pipe or cannister won't fit in the fuse of the Columbo Anderson kit