For the cost the inkbird controllers are worth their weight in gold. However, a dehumidifier will have its own control - so go that way first. Get one that drains out - or you will be emptying often !!!
AFAIK an a/c will remove some humidity - but not ideal as it switches off when x temp is hit. Temp and humidity are not directly related ... keeping it simple ;-).
I also use a WiFi environment monitor - again pretty cheap off Amazon - saves opening and closing the tent and changing conditions. Alarms are vital to monitor the environment IMO.
We look after roots and environment - the girls do the rest. I see it like running a reef tank