Worked on retract mechanism some more. Had a good look at the electrical switches used to indicate retract travel. These switches are strictly used to illuminate the lights on the panel to show if the gear is UP or DOWN. Not surprisingly considering where this plane was designed and built, these switches were made in France. Interestingly considering the age of them, a couple of these switches still work and a couple of them don't. Surprisingly, these exact switches are still available! Online sources like DigiKey have hundreds of them in stock. Easily replaceable. The first photo shows the switches mounted on the RH gear assembly with the switches mounted. It'll need cleaning in the future. The third picture shows the pieces that were made to mount these switches to the gear retract assembly. The shorter, curved pieces mount into a channel machined into the assembly housing. They are wedge shape such that when the plate is mounted above and the screws are tightened, the shape wedges itself tighter into the groove preventing any inadvertent movement. Notice too that the screws pass through some bushings. Two of the bushings have their hole offset from centre. This eccentricity allows the builder to mount the switch on the curved plate and then rotate the bushing to set the distance as required. To adjust the location of the switch, the plate is rotated around the retract housing with those wedges riding in the machined grove. Once again, beautiful pieces that were much more complex than necessary. A simpler way to mount them would have been to have a simple bracket with some elongated holes to allow adjustability. I ordered the AN5-80A bolts required for landing gear mounting. I need four of them, two for each wing. These are significant bolts because they are the second longest AN5 bolts available. Imagine 5/16" diameter bolts that are over 8" long. AC Spruce couldn't source them so I found a manufacturer for them that sells them for $15 US a piece. During my search, I'd found a couple of places who offered to source them for me. One place quoted me $2500 per bolt! Needless to say, that place is off any future search list of mine. I also placed an order for some AN5-60A bolts from AC Spruce for the other mounting holes. I need 22 of those bolts (11 per wing) and AC Spruce can provide them. These bolts are a measly 6" long.