So I was thinking to use the following approach:
Source an expiring domain with the following metrics:
- Minimum 20 relevant domains linking to the site
- First registered in 2009 or earlier
This is obvious a pretty weak domain but the choice is not that wide so I keep it low, what's most important for me is that it has links from relevant domains already.
To boost up the PR I would then build 10 permanent PR3-PR4 homepage links to it to turn it into a solid PR3 domain, and obvious using relevant anchors.
Do you think we would be able to fool Google for the full 100% in terms of relevance. Sure you can buy any PR3/PR4 domain and re-theme it but as long as the back link profile doesn't match with the posted content then it's still far from a relevant back link and thus less valuable.