310 Redirect rules in .htaccess for Magento Migration

I need someone familiar with the advanced usage of RewriteCond directive and manipulating query strings in Apache HTTP Server to handle redirects from our old website to our new website. Our old website is heavily indexed by Google and other search engines as we have good domain authority. We need to do 301 wildcard redirects in .htaccess for five wildcard scenarios with dynamic urls to ensure that indexed pages do not throw 404 not found errors. Example Scenario: Old URL: [login to view URL] (this could be one alphanumeric word or two words connected by a "+") New URL: [login to view URL] I would prefer working with an advanced developer who understands advanced dynamic redirection on this one as it is a quick fix for someone with knowledge and may take years for someone without knowledge. In a nutshell, we will not pay for your research. At the same time, we will pay the best professional fees for a qualified developer. I expect bidders to wrap this up in one day. Cheers!