So you want someone to give you 10k
BTC and you will give him ~330mil in cash, in a
security house (?)...

Either you are insane or you are full of crap. Most likely the second.
It's "only" €300 million now. The most commonly used €50 banknote weighs
0.9 g. That makes this deal weigh 5400 kg.
Scammers like OP have a very good day if they manage to scam a fraction of a Bitcoin. Luckily, there are other scammers why want to sell 10,000
BTC for cash too, so they'll be a great match
