Wave 1 build - 2 auras, buff beam, pylon.
Wave 1 combat - Builder App with a dice/Baby Old One. build the rest of the towers and upgrade buff beam during combat 
Swap to upgrader and upgrade all your towers, then swap to your builder app til last wave when you pull out 4 huntresses/hunters/gunwitches.

You don't need to use a tboost monk at all if your app is high enough stats, the hereos on the final wave also do not attack the crystals at all so once you deal with the ogres that spawn you're safe. My 3 huntresses I spawn in have 2x huntress guardians and a cat so I can focus on DPSing the final wave with a gunwitch with a DPS pet. Combat times are typically around ~9:30-10:30