vsmith:
Very cool, it reminds me of my HOn30 layout thats 9" x 10". I have a similar N micro also planned. Might try HO after seeing this
There are several tricks you need to consider when trying to keep HO trains from derailing on such tight radius turns. An 0-4-0 steamer, 4 wheel very short cars, couplers that have edges of the coupler holder trimmed so that the couplers can extend further to the sides, and parts of the sides of engine or car bodies trimmed to allow for the tight radius turns.