Pages sidebar block templates

I find myself using the same Pages sidebar blocks on many pages and feel a good suggestion would be a way to template the set of blocks and then simply add it as a single block on any page or even just default any page that isn't already customized to use it?

For example, say I have 10 sidebar blocks and 20 pages I want them on, I have to add 200 blocks manually.  I'd prefer to set this as a default in one place and all pages just inherit it but you can still go in and customize any of them if you desire.