Hi Matinandra, I would recommend contacting a few of your local exchanges, checking out LocalBitcoins or perhaps any one of
these exchanges.
Yeah big amount of bitcoins to buy is very risky even how good an individual could be get tempted to scam you. Purchasing bitcoins might be safer in those local exchanges and I agree to this man about it. Localtbitcoins is one of the recommended exchanges in buying bitcoins. I think you should try this one.
Guys, it is impossible to buy a big amount via localbitcoins... No need to mislead people