Only thing I am missing is the Startpage as a easy grid version
I don't know what you mean by that. Never heard of "Startpage," except for the search engine of that name. A static page can be set as the front page on any WordPress.com theme, if that's what you mean.
A staff member will typically respond to every topic in the Themes forum, but it might not happen until Monday morning. Adding a "modlook" tag to the sidebar (of this topic) to call for staff attention might result in staff responding sooner, but it could also deter others who might have useful suggestions from responding.