The Asian Commercial Sex Scene - Advice needed for Bangkok Adventure

Dear bros,

I am making a trip to Bangkok to explore the streets, nana and soi cowboy.
have read up many infor for the web and youtube. However I am here to seek advise from S'poren, Thai bros on this informative forum.

I did checked out the barfine rates and alsi for short and long time. Again those info were pretty outdated, dating back 2005.

IU'll be staying on nana itself. Am wondering if any bros here can help. What I need to find out are as follow:

Nana and Soi cowboy
1. Barfine rates if I want to ask one of the bar ladies and waitress
2. Long time (overnite) rates of these bar bars
3. do those promoters standing outside the bar also take long time job?

Street walkers (AKA freelance)
1. Long time rates

As I know it's a willing buyer/seller market, I just need a guide.

What's the best time to go there if want to adoive bar fines?
As I'll be travelling alone, what best practice to take? Any danger to avoid?

If you have info I will really appreciate ur help. When I am back I will share with u my FRs.

Thnak you for your help
Nana2013