Has anyone gone to HongKong. I understand that the most popular way to hobby is to go the buildings and knock on each door but that looks a bit uncomfortable. I did visit the websites sex141 etc. which looks good but have heard that a lot of the photos have been photoshopped. I like the fishbowl experience where you can see multiple girls and choose the one you like. Wondering if there are establishments like that in HongKong?

141 is exactly like that. Knock and browse, door to door. It's worth giving it a try, for science you know. I sampled once before -- kept running into the same milf I didn't want to f -- and because all the hallways and doors look the same she was just as pissed when I kept knocking expecting something different. It's also fun to see other mongers(mongrels?) wide eyed and seasoned roaming the building doing the same. Think of it more of a tourist attraction than a hunt.

http://en.wikipedia.org/wiki/Wan_Chai
"Prostitution had been one of the oldest occupations in Wan Chai. ... Despite rapid changes of Wan Chai's demography due to reclamation and redevelopment, the presence of sex workers operating among ordinary residential areas has continued to be a distinctive feature. Some of the lifestyle was illustrated in past movies such as The World of Suzie Wong. ..."
.
http://en.wikipedia.org/wiki/The_World_of_Suzie_Wong
"The Nam Kok Hotel featured in the story is based on the Luk Kwok Hotel on Gloucester Road in Wan Chai. ... [Robert] Lomax and Wong are eventually united and the novel ends happily with them marrying."
.
http://en.wikipedia.org/wiki/The_World_of_Suzie_Wong_(film)
"... Robert [Lomax] looks for an inexpensive living place in Wan Chai, a poor area known for prostitution. By chance, he sees Mi-Ling leaving the run-down Nam Kok Hotel. When he inquires inside, the hotel owner replies that he does not know any Mi-Ling, but he and Robert negotiate a monthly room rate. ..."
.
http://en.wikipedia.org/wiki/Prostitution_in_Hong_Kong
"Prostitution in Hong Kong is itself legal, but organised prostitution is illegal, as there are laws against keeping a vice establishment, causing or procuring another to be a prostitute, living on the prostitution of others, or public solicitation. ..."
.
"Street prostitutes: ...
o One-woman brothel: ...  
o Saunas and massage parlours: ...
o Night club workers: ...
o Freelance: ... "
.
And so on ...

Interesting name for a hotel.

Went last year. FS starts at 500 Hong Kong Dollar, which is ~$65 US Dollar. 1:1 prostitution is legal, so supply of women isn't an issue.  
Hong Kong is also a financial hub, so providers from surrounding countries will fly in to work. Russians went for 1000 Hong Kong Dollar last year, which is ~$134 US Dollar.

...You are on absolutely wrong board to get intel on international mongering.  You might find one or two guys who have gone and tasted international waters, but TER mostly is for US mongering.  

For some reason I am unable to even access the ISG site. Probably because I am using a VPN. Does anyone know what website would be a good one to find providers within a particular price range? I am often confused if they are talking about HDK or USB. I would prefer to book one via a website and then go to her place. Also will they be able to converse in English?

Then don't use VPN... You need to find the way to get on the website and do your own research. There were some websites shared on the Hong Kong form that I just perused  (for you.. not for myself...helping you out here...)  but the sites were in Chinese, which I don't speak or read.  

I know you don’t like the idea of knocking on doors, but trust me, it is quite the experience. It sounds awkward to knock on the door, do an elevator check of the girl and decide yay or nay, but after the first few encounters, it becomes fun in a way. It’s almost like a box of chocolates, not knowing what you’re gonna get.