BIFA is still running.
It's a bank sponsored cadetship system. Applications for students to BIFA is to pass the selection by an airline (almost 100% by Garuda), passing that, you'll go to a bank financial assessment, upon approval, students pay 50% of the course fees & flight hours, the bank loans you the rest. Flunk out, and you pay the bank.
The accomodation is nice, the instructors are well paid too.
They're short of aircraft, so I doubt you'd be able to rent them out.
For aircraft rentals, Sky Aviation is probably the only one around there.
The current problem with general aviation is the flight approvals system/method, which, unless you fly under a Part 135 or 121 or is a flying school, is a total nightmare. Hence the hideous rates one would see on the net.
PK-KAR