102924 Need Higher google rank 7 or 8

My current web site google page rank is 4 i need higher rank 7 or 8 Conditions: - Backend Access to website wont be provided - Outbound links/reciprocal links from the website wont be provided - Entire Process would be OFFSITE (You can't change / alter the website) - Please no FFA, link farms etc. We know what we are doing but just dont have time to do it ourselves! Please explan in pmb how job will be done. Payment via escrow, released once site has maintainted PR 7 or PR 8 for 1.5 month.