I have been working on a car float for a month now; the size is 17" x48". Loosely based on a Lehigh Valley prototype. Its four tracks and will be wood decked. I used Masonite for the base, cut trim for the edges. Cutting and mitering was slow, but its getting there. Today I started placing track on the deck and hope to have it nailed in this week.
Once the rails are together, I will cut the turnouts in half as part will go on the float bridge.
Enjoy