PPL can be done for 7-8,000 usd in 3 weeks
in the states. Cessna's should rent for 5-700 HK
an hr. don't even attempt it in HK. The pollution alone
makes most days special VFR.
edit.. 3 seconds on google yielded this
Private SEL & MEL | FLAviationAcademy.com
$7000. or 56,000 HK.. WHY on earth would you try and do it in HK