What's the easiest way to get a 'clean' installation?

[ericholtman]

We're thinking about upgrading our boards from 3.5.1 to the latest 3.6.+.

We've installed numerous templates, hacks, addons, etc, etc over the past two years. I'm not sure we even use most of the cruft.

If I backup my vbulletin and restore it to a test environment, is there some easy way to remove *everything* except posts, sigs, pictures, etc..... In other words, return the boards (all on the test environment at first, naturally) to a pristine "just installed from vBulletin" state, except that my content is there?

If I could do that, I think re-installing templates and plugins I want would be easier than trying to figure out which ones work with 3.6.+ and which don't.

I understand that if I've done some template custom editting (which we did), I'll lose that, but I think starting over would be easier than trying to find out which things work and which don't