New Wordpress Booking Plugin

I need a new (rewritten) wordpress plugin like the onlinebookingcalendar from [login to view URL] (i don't have this plugin) I need all the features from the multiuser edition. But with some differences : - a booking resource will be represented by a post with s special custom-post-type. The plugin must define this post types. - all settings for this 'resource' could be done at the post-admin-panel for this custom-post-type. Only escrow payment. step 1 => 10% upfront escrow step 2 => 45% after everything works step 3 => 45% 3 month after step 3, to fix bugs and check copyright violation All escrow payments will be uploaded before the step/milestone starts, but ALL payments will only be release after step is finished. You also agree that nothing will be paid if any portion of the plugin vialates existing copyrights. I got all the rights if the new plugin.