Just to let you know that my plugin is now available. You can check my profile.
Very nice, I can most certainty appreciate the effort and work that has gone into this. Good luck with sales dude!
If you’ve been working so much for this plugin, I think you should release a basic version as GPL on WP.org, and sell the pro version on your own with a lot more, like $150-$250, than again I wouldn’t know the best option.