Your article quotes $750/month. You should not have any difficulty finding an admin @ $9k/year + $1k start-up. Your friend needs to figure out what services he really needs, and really is willing to pay for; and to forgo extraneous services that jack up the cost. Which of these services does he really need?
Process subscriptions and redemptions
Calculate partner-level T+1 NAV's vs. monthly or even quarterly
Multiple fund custodians
Keeping accounting books/ledgers
Keeping full entity statutory books & records
Custody (i.e. pool operator) vs 2nd signer vs no custody
With a 400k fund, your friend really ought to keep it simple and lean. For example, your friend could use just a single entity, serve as both the entity's manager & advisor, draft his own offering documents, process his own paperwork, and hire book-keepers do to quarterly batch-processing.
Your average administrator (and certainly not one who charges low rates) is not going to hold your friends hands with fund/MgtCo structuring and offering+subscription documents. He is going to put that all together himself - so he might as well put it all together in a way that keeps his costs down.
Also, finding competent service providers on the islands doesn't come cheap because of the lack of competition, low supply, and high demand. Your friend would probably save money by using first-world providers in competitive marketplaces. He should investigate if a US fund vehicle would be cheaper than a BVI or Caymanian entity. China & the United States do not have a Tax Information Exchange Agreement in place (China has TIEA's with Argentina, Bermuda, Bahamas). For your investors, using a US tax-transparent vehicles has the same practical result as using a tax-haven tax-free corporate vehicle. And if you are going to open a brokerage account at Interactive Brokers, you are going to end up disclosing your investors identities anyway, so the non-public tax-returns are not a big deal.