Hello,
My name is Sergey. I am Freelancer from Saint Petersburg, Russia.
I can help you as a WordPress programmer to create plugin to limit widgets in sidebars.
So, Admin can be able to define global, say, "not more than 3 widgets per sidebar"..
1000+ successfully completed projects, including 200+ WP projects, speak for me. Links and reviews from my past clients available in my profile.
I am an individual, I am not a company in any meaning.
I can start locally, but I need FTP access to upload my work to your site and test it properly. And login/password into "wp-admin" Dashboard.
Can be done in 1 day (Sunday).
I can communicate via Freelancer.com.
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Sergey aka Takereal