Most important, the I/O panel DOES NOT use spacers. The LEDs attach directly to the circuit board, then the panel is fitted to ensure alignment of the LEDs, then you flip it over (I taped things together first) and solder one leg (I choose the longer one) of each LED, then flip and check fitment before soldering the other and clipping off excess leads.
I'm surprised you were missing all the standoffs for the main operator panel (119 offsets for 119 LEDs). Contact Jose using the email in the instructions to request that many.
I did find an
amazon.ca (I'm in Canada) link, but you buy 100 or 1000 (two offers). Both appear to be the correct (8mm) ones with two holes in the bottom. Here's the amazon link for 1000:
and here's the link for 100:
I like the photo of the 1000 better than the photo of the 100. Prices are low and comparable (14.34 CDN & 10 CDN ) but shipping on 100 is more. Both come mid-to-late January. For 119, I'd personally go with Jose and the 'official' spacers for the kit.
-R