Use Jester Move Tower to put the stack in the same spot.... With the map being this small its genuinely faster than even running to the areas to build them normally in a line.
Point 1: Ensure all towers cover half of the staircase on the North edge
Point 2: Build everything, including traps on the ledge raised area; STR drain can be on the lower level.
Point 3: TB spot
Upgrade wave 22, then 2 range rate summoners and an app guardian on your Squire builder.