I'm still in the planning stage. As for the space, well, its big. When we moved into the new digs, I scored almost the entire basement

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It's a lot of space, and i'm another one who is not a wiz at calclating space, however, it has the following measurements: 25ft along the south side, 33ft along the west side, a staggered wall on the north side as follows: 12ft, 2ft inward, 9ft, 2ft inward and 18ft, and 18ft on the east side.
There is a stair well, north to south going up, which takes up 4 x 13 ft and is 12 1/2 ft from the west side, however, the back side, while walled in is open in the back and has headspace extending 5ft that track can go through, so that the space eaten up by the stair well is closer to 4ft x 7ft.
Maybe some helpful soul can have a try at figuring it out for me
Terry