So, if I were to buy these using blockchain.info... I would have to:

• use the current version (NOT the next one at alpha.blockchain.info)
• create a new wallet
• go to "Receive Money" and transfer some bitcoin to the address in there
• go to "Send Money"
• choose "Transaction Type" "Custom"
• select the same address for the select boxes "From:" and "Change Address:"
• paste IOTA Crowdsale address in the "To:" field
• enter the amount of BTC to buy, it must be less than the total available btc on that address, because I will have to save some (I don't know, 0.01 maybe?)  for step 3 plus miners fees
• click "Review Payment"
• click "Show Advanced"
• veryfy that the same address from "Inputs" is listed on "Outputs" with enough money for step 3 (I am guessing 0.01 btc is more than enough)
• click "Send Transaction"
• go to "Import/Export"
• choose "Paper Wallet" and print (to be able to import the private key somewhere else in case blockchain.info migrates to alpha.blockchain.info or shuts down before step 3)
• choose "Export Unencrypted" then "Bitcoin-QT format" and copy the JSON somewhere just to be extra safe
• pray for blockchain.info to exist and to still have the "Transaction Type" "Custom" in the future
• when the time for step 3 arrive, use "Transaction Type" "Custom" option to send the specific amount required in step 3 from the same address that I used as Input and Change Address on the previous transfer

Is the procedure above correct? Did I missed something?