There is nothing wrong with the structure you are using now. The main thing is to have scheduled levels and raise the blinds in a structured manner, as you are already, to ensure the game keeps moving. The only thing that you left out is the one thing will determine how fast the game goes and that is the time in between each level. It looks like the way you have it set up, the BB is equal to the starting stack ($2,000) at level 10. The only question is, how fast do you want to get to that point? 10 minutes level changes get you there in about an hour and a half. 15 minutes gets you there in about 2 and half hours. It's up to you and your players to determine how fast you want the game to go.