I know you are probably doing the bolt (which I fully support). BUT I was looking at videos of bullhead tanks and found this awesomeness. Just in case you did want to look into one then PM me. But again I'd stick to the Bolt. I just had to post this because it is so awesome! Plus the one in the video is in a 150 so it gives you a feeling on how it would be doing in your tank as well!
http://www.youtube.com/watch?v=PRJezAoeF-w
http://www.youtube.com/watch?v=PRJezAoeF-w