I originally posted this in the 3 Rail section, I realized it belongs here.
Since getting into this hobby a little over two years ago I have made some great friends. I am happy to call Dennis Brennan, the person most responsible for my entry into the hobby, a friend. I happened across his book in the carousel at my LHS and I have been addicted to model trains ever since. Over two years ago I went to Dennis's house to see his Sandy Harbor Terminal Ry layout. On his workbench was the pilot model of his roundhouse. It was only three walls, but I was blown away. At that time Dennis was not sure if he was going to produce the model as a kit. I made him promise to sell me the pilot if he decided the kit was impractical to build and sell. Luckily for all of us Dennis pushed forward with producing the kit. The first wave of kits are done. But Dennis had never built the kit from the component parts. He scratch built the pilot model and there have been several upgrades and revisions throughout the kits development.
Dennis please chime in and correct me if I misspeak.
I selflessly 
offered Dennis the opportunity to build my kit with me as a Beta Test before he shipped any of the kits. He shipped everything to me even though he was coming to my house just to be sure his packing method could withstand the punishment doled out by UPS. Everything arrived safely, even the 22 plaster castings.
The base kit will make a three stall RH and is comprised of 14 7.5" x 5" wall castings and 1 larger center section casting for the rear wall. I purchased a 7 stall kit with the optional extension to accommodate a Big Boy (22 castings). In the photo below Dennis is painting the large center section for the rear wall.
We spent three days working through the kit. We did not complete the kit. We spent a lot of time considering the best method to complete the various sub assemblies and we worked through the best way to describe the process to the end user. I believe the builder will appreciate the time we invested in the instructions. And, I am also pretty sure all that Guinness did not enhance our productivity!
Dressing and painting the 22 wall castings took a lot of time! I am a novice model builder, and nothing we did was intimidating or overly complicated, you just have to be patient and take it slow. I think the results speak for themselves.
Dennis still wants to finish a kit before shipping them to his customers. He will come back in a couple weeks and we will finish it. He will edit the instructions as needed and then he will ship the kits.
I have and perhaps many of you have been waiting a long time for this kit. I knew it would be worth the wait. The RH kit exceeded my expectations. If you ordered one be prepared to be overwhelmed by the number of boxes and quantity of parts...I was. But if you take your time, accept that this structure will not be done in a couple nights, then you will build the most incredible roundhouse on the market.
I will post more photos as we make progress.
