Iteration Requests

Those are pretty much already handled by plugins.

Also, WordPress is an open source project. Have you considered getting involved?

Making WordPress

Have you tried out a few of the plugins that do what you’re looking for?

https://ww.wp.xz.cn/plugins/

You might not find exactly what you’re looking for, but you’ll probably find something that comes close enough.

Alternatively, you could always hire someone to build exactly what you’re looking for.

If you do decide to do that, try http://jobs.wordpress.net/ or http://directory.codepoet.com/ and do not accept any hire offers posted to these forums.