We introduce to Apex Clearing for equities and options. Although opening international accounts are always more challenging, Indonesia is not on their restricted list. We can only offer Reg-T margin accounts, not portfolio margin for non-USA based accounts. Also, my firm only offers USA domestic listed equities and options. And, our minimum account size is higher than many retail online firms. This would be a SIPC protected customer account, not a prop relationship.
If you want more information, email me directly your name, contact information, size of the account you want to open and any other items I need to know to see if we can help.
$10k isn't that high. If you want a decent broker that doesn't rip you off, they don't want to deal with you for a measly $5k account. Bucket shops will even accept your $100 and cheat you out of it quickly.