If say RM 3K × 7.6 = 22,800 THB
Take it as: (at BKK)
Massage palor 90 minutes = 2500 THB
Thermae Bar lady ST = 2500 THB
Outcall massage at hotel 90 minutes + HJ +? = 2000 THB
(Just personnel opinion hor...)
Within 3 Days 2 Night, you maybe can estimate how many times on which activity...
Do some study/Google for updated BKK or Pattaya...
Personal opinion, you should just stay at BKK.
As going Pattaya will need more time and $$.
If you insist to go Pattaya, Subarnabhuni Airport got bus service to Pattaya at about 100+ THB. Go YouTube to find out more...