There are few sites with PR5, PR4 on front page.
Every page will have no more than 3 outbound links that may be yours, means OBL extremely low.
Im offering monthly subscription 25$ per link
Discount starting from 5+ links possible
I may also arrange permanent link on an yearly basis ($125 per annum)
Having one PR5 backlink will give your page PR 3 instantly !

Please PM me for sites list available