Laker80, I know this might be a bit overly complex, but I had a go at seeing at what I could fit. Minimum curve O36. This layout gives you four ways to operate it:
1. Simple Continuous loop on the left-hand side, possibly with a second engine working the yard
2. Inverted Figure 8, going around the outside, straight opposite the yard, and through the crossing
3. Reverse Loops, going by the yard, turning opposite of it, through the lead track, turning left before the crossing and back
4. Going wherever just for fun 
Links in case Pictures didn't imbed/show: 3D, 2D, Parts List
