bro, just my 2 cents worth here. Actually I have tried this guided tour before, i mean I organize such trips too. But of course my place is not Bangkok, cos I'd rather some near places like Riau Islands.
This is how i do it? I cater to Malaysians who have never cheonged before in their lives. I do a 2 night 3 day tour say like Tg Pinang. Everything included, ferry, stay at BBR, cewek, Entrance to disco and 1 seafood dinner for which i charge RM1000/-
Not inclusive is, tips to cewek, drinks in disco, lunch, shopping, all u pay urself. I move when i have 4 - 5 pax. Thus far, i would say quite good response from some decent mats and executives who shy away from going on their own. Discreet service.
Another one is providing sex tours to Ang Mohs. Advertise in Western sountries, make arrangement with sail yacht owners in Bali, or Indonesia or even thailand. Organize a 1 week luxury tour with gals and parties on board private yachts for these people who can afford it. make money broooooooo...
I normally advertise in my own anakmelayu forum below.