Mike.
Before I make a suggestion I would need two things.
1. Your age.
2. Your health status.
As good as some layouts plans look, if you had a bad back and can't duck under things or reach areas forget them. If your getting to the stage in your life where you want to make it easy for yourself or this layout is going to be the one for the rest of your life think about around the walls.
If your a fit young bloke and want to set the world on fire and build anything you like without the worry of age or health any plan would suit you.
My layout fits in a 28' X 28' room I could show you what would fit in your space by overlaying your space on my track plan if that helps.
Roo.
