Planning my Great Escape

I've given some thought to what I want to do next with my song, The Great Escape. J has suggested that I post a version in which I've re-recorded the vocals. I've decided not to do that, and instead to stay with my original plan which was to post an instrumental version.

By posting an instrumental version to GarageBand.com, I am asking for the listeners to review my song on its merits as a composition. If I were to post a version with new vocals, it would like I'm asking to be reviewed on the basis of how much have my vocals improved, and that is not what I want to do at this time.

I've listened to an instrumental mix that I had recorded several years ago to get an idea for its suitability for posting to GarageBand.com. Overall I think it's pretty good, but there are a few areas where I think it needs some fills - some percussion, and maybe an additional guitar layer to bring out the melody.

What my next steps would be - set aside a budget for studio fees and schedule a session or two.