Client Selects Site/Blog Template

Hi all, I'm getting my head around this amazing suite of products but have a question.

I want my clients to have either one, or a selection of choices of templated blogs. So one client for example would get different page content as a template for their home page whilst another will get a different set of pages and settings within a plugin.

I was thinking if I created these sites myself and saved them, is there a way a client can choose from a list of these pre saved sites to clone?