When I'm in Asia, which is about 1/2 of the year, I split my work day in two... 5 or 6 hours in the work day on Asia time, then I break, eat, nap, etc,, and then work a few more hours after 10 pm to give me time in the US time zone to do things necessary with US based companies, and when I'm there, I do the same thing in reverse to keep up with my guys working in Asia.

I doubt actually hosting in Asia is a viable alternative for this type of business, and you are likely better off hosted in the US or Canada or EU states anyway for both security, legality, and reliability reasons.

I don't know about you, but I would only have need to contact the billing department for either of my hosting companie once a month, two at most, and the rest could be handled by email. Seems to me that since it's such a low time requirement and considering all other factors, hosting in Asia might not seem the solution you are seeking.