Cheapest Muay Thai class with gym facilities near Bangkok central area? For the DTV application, anyone has suggestions?

So far most dtv Muay Thai seems to be far from.bangkok central area..not even onnut or rama9 places...

Hi! (I hope it´s the right group for my question)

Wanna escape the smog in Chiang Mai from March to April (2 months)

Can you recommend some good places in Thailand?- South??

Requirements:

* No tourist area or less visited by tourists, yet not toooo boring

* Cheaper area (apartment and food - e.g.: apartment rent max. 6000 Baht per month? I know Chiang Mai is very cheap)

* Need strong WiFi (availabe everywhere in Thailand I guess)

* Gym available (weight-lifting )

* Beach nearby would be nice

TIA!

Anyone knows of hotels with open gyms in Phuket right now?