Perhaps not quite what was asked for but here we go
Area for the 1km oval
This is a 1km aero straight , new additions would include turning areas at each end.
This is the 5km main circuit. It runs anti-clockwise so as drawn the pit straight goes up into the first sequence of corners.before running back parallel peeling off around the end of the runway. The pitlane isn't the biggest but the hanger area to the real is the real paddock space with resident track cars housed in the various hangers.
Finally the roadways in this area don't lend themselves that easily to racing, so I'm designating this the driving school/road handling course and rally areas.
This leaves the administrative side of the base for hotel and conference spaces, all the while leaving the runway open.