Magnum Cam Selection Suggestions
Sounds about right.
Just a note on the converter, your estimation is a little low imo. If you contact a few good converter companies don't be surprised to get a recommendation for a 9.5" converter in the 3500-4000 range. Don't be afraid of that, it's a good thing, and will be one of the biggest factors in you meeting your goal ( which btw I think you will ).