Parked domain mapped to a specific page – possible?

Hi guys,

A week ago I found a plugin that could do exactly this, downloaded the plugin and went to install it today – can’t find it anywhere!

I’ve searched for hours now so I’m turning to you for your help to see if anybody knows of any way to achieve this.

Basically, I have:

companygroup.com – the parent site, running off wp as a cms

In terms of content it has about, contact, courses, blog, etc.

I want the courses page (companygroup.com/courses/) visible from:

companycourses.com – parked domain

I could just use a simple redirect, but the courses page has children pages, and I want them visible like:

Instead of: companygroup.com/courses/course-one/
To be: companycourses.com/course-one/

And for all variants of that url (canonicals etc) to redirect to the chosen url.

I know this is an awkward setup, but I’m testing the power of having the seo keyword in the domain name vs. just in the url, and I’m keen not to have to install a separate wp as the client logs into the wp and would quickly get confused.

Note: I don’t need separate themes and plugins per domain, content/settings can all remain exactly the same, I just need all requests to the “courses” pages to go to the different url.

Any help/advice?