Top 5 Position in Google. Start now !

Need experienced SEO for our website to reach Top 5 position on Google for a keyword search results. We're currently on Page 5 of Google results. Payment will be made as follow: 25% payment when our site appears in 2nd page on Google. 25% payment when our site appears in 1st page on Google. 50% payment when our site reaches position 5 on 1st page on Google. Please indicate SEO Methods used and Time frame to reach Top 5 position. -- ABSOLUTELY NO BLACKHAT OR GREY HAT METHODS, ONLY WHITE HAT METHODS. -- Google guidelines must be followed and no way should be compromised.