Limelight and Total CMS: to they work together?

I am going a bit outside the perimeter here, but hopefully, someone has already been there.

I would like to use the limelight lightbox on an F6-RW page where the specific URL data is provided by Total CMS, i.e. the {{permalink}}.

Currently, this functions:

With this result:

However, I would like something like this URL in the iFrame to work:

https://cms.wgburden.com/stamps/{{permalink}}

so that the URL is not hard coded (and thus useless).

No doubt I am missing some 'trick' to allow me to pass the permalink to the iframe URL. Advice appreciated.

Thanks!