Boonex Dolphin upgrade with all customizations intact

I need a programmer who can upgrade my Boonex Dolphin site from version - 6.0.0005 to version - 7.0.2. In a previous project bid, we were trying to allow members and admin access to videos uploaded via web cam (Rayz video recorder) so that they could make appropriate changes (edit, delete, rename, etc.) as they are able to with normally uploaded videos but we were advised that this isn't possible with our current version and requires an upgrade. I've further been told that upgrading from version 6 to version 7 is more of a migration that will require rewriting code to get current customizations to my site to continue to work properly. This said, my site has been customized and has several modifications that must be intact once the upgrade is done. To ensure everything is working after the upgrade that worked before, I will require the chosen programmer for this bid to do a full backup of the site as it is now, prior to work being done, so that we have a reference to check what was and may not have been working prior to the upgrade in the event there are any questions or disagreement about how the upgraded site compares functionally to the current version 6 site. Additionally, to complete the site in full, there will be four more planned project bids related to this project that will be required after this project bid to upgrade is completed. I hope to be able to utilize the same programmer for these bids so it would be nice to work with someone eager to familiarize themselves with the site and who will be familiar with the version 7 coding and who will have the time to see the project through the next four phases until the end. If you are interested, capable, quick and skilled at Boonex, please feel free to submit a reasonable and competitive bid and contact me about the project as soon as possible. I'll also want to see examples of your previous Boonex work, preferrably an instance where you've successfully upgraded another customized Dolphin site and references for the site owners would be a welcome peace of mind as well.