The building frame is ready, so I'm now waiting for the plywood to arrive. Over-engineered? Maybe, but I prefer solid to flimsy any day...
I've mounted the frame on 3 sets of castering wheels, for the bow, centre, and stern. This will let me move the boat in and out of the garage on my own as needed. The castering wheels can lock, and once in place I can use a spirit level to make sure the frame doesn't get out of kilter. I have some shims that can be placed under one or two wheels to lift the frame up a bit if necessary. The concrete floor is pretty level, so I'm not anticipating any problems here.

The plan for the building frame called for doublers on the legs, so that the weight of the boat is transferred to the doublers that are directly under the frame, rather than relying on the strength of the screws that hold it all together. Because I have placed wheels under the legs I have added diagonal supports to the legs, to keep everything locked in place as much as possible. The legs lift the bottom of the frame 267mm off the floor, but with the wheels installed the gap extends to 365mm, which will make it much easier for me to slide in underneath when working on the bottom of the boat.
Our double garage is just deep enough to fit the CS17 Mk3 lengthways, with the bow at the roller doors and the stern close to the cupboards, and there will be times when this the how I will be working on the boat. Most of the time though, I will be spreading out, with the building frame oriented across both parking bays, and more room to work around the boat.
After seeing the heating setup used by another Wooden Boat Association member, I ordered a 10 watt USB-powered aquarium heater through Amazon. This has a thermostat that can be adjusted from 18° to 34° C. My epoxy containers will sit in a tub with a few litres of water in it, and the heater will keep the epoxy at a good working temperature as winter gets going. My old epoxy heater used an incandescent 40 watt light bulb in an insulated box to keep the epoxy warm, but I found this was actually a bit too effective. I've beefed up the insulation on the box and have used this as a lid to go over the water tub. My test today, before my epoxy arrives, confirmed that this should work well.
To deal with the inevitable drips and spills, the epoxy work bench has been covered with core flute, recycling a sign for one of the candidates at the recent federal election.