Wow looks like most people didn't even bother to read the OPs post.
Directories are exceptionally poor for building "high PR
dofollow backlinks". Why? Because most of the category pages that you could list on, won't be high PR
e.g. A directory that claims to be "PR5" is really only PR5 on one page. It is why it is called "page" rank, and not "site" rank. You don't get a PR5 link back to you, it will be something like PR1 or PR2.
The second issue, even if you do manage to get listed on a high PR
page, is dilution. Pagerank juice is shared. Many directories will have a lot of listings on the one page, so even if you do manage that high PR
listing it will be diluted so you don't end up gaining as much as you think.
So, in answer to your question Can you use directory for build High PR dofollow back link?
The answer is NO.
Try something else.