8. Chose Import Directly, wait for transactions loading.
9. Click on "Send Money", enter your Bitstamp BTC deposit address, than click "Send Payment".
10. Wait until 6 confirmations and sell your BTC on exchange.
I did step 8 correctly, there are now zero coins showing at my paper wallet Public Key address. But there are still zero showing in my Blockchain wallet. Is this a normal delay?
Re: step 9, I can send to Coinbase just as well right?
Step 8. Zero ballance in your Blockchain wallet means that you not did step 8 or that there are no coins corresponding to this private key. Zero ballance in your paper wallet address means that you/somebody already send this coins. You can check all transaction history here:
https://blockchain.info/, just enter your address and click on "Search" button.
Step 9. Yes, of course, you cand send them anywhere.