If you are looking for some reasonable temporary mounting means for your flight deck parts, your local IKEA may have what you just need at a very friendly price.
I was looking for a sturdy structure to mount the sidesticks – wood did not appeal because of the perceived structural weakness based on the required dimensions – fortunately the Antonious IKEA range caught my eye.
The frame (12.00 AUD) was cut at my local metal fabrication shop and the sidesticks mounted in less than 15 minutes.