I’ll happily have a go at cad modelling to make an .stl file if someone wants to give me accurate measurements or a part to copy.
Bear in mind printed parts will be considerably weaker (in at least one direction/plane) than cast/moulded originals. Although fine for things like indicator spacers that tend to be used in compression, with a bolt running through them.
They may also need finishing or polishing depending on desired finish and printer ‘resolution’.
Check out
www.3dhubs.com for printing services where people from the-bloke-down-the-road to Airbus (at a price!) will process stuff for you when they’re not using it for their own prototyping.