Start on Wave 22. The Auras on the South core are placed so the Pylon's range extends to reach them, and will eventually boost them onto the Buff Beam near the forge.
Upgrader, TB, and 2 Hunt/Monk Summoners on Wave 22. Replace the Upgrader with Gold Wheel Jester at wave 23.
I recommend Gold wheeling at 0 kills, ~550 kills and ~1100 kills each wave. Things get a bit dicey if you gold wheel the Ogre/Harbinger flood at the end, but it is survivable if you are careful.
TB should aim towards the black arrow, which will be right above the entry point there. 7k+TB is recommended (I use 9k)