Revive Server VAST 1 to Vast 4

Hi, I use Revive Server for rotating ads on my website. As far as I know, it's the best one out there that doesn't charge me to show ads. I want to display VAST Video ads, however, I use [login to view URL], which accepts VAST 4. Revive Server outputs a VAST version previous to 4. Therefore the two aren't compatible and no ads are displaying. I've tried to find the files in the script source on their GitHub page, and modify the files so that I can therefore run the maintenance script to rebuild the delivery files, which is what one of the files says to do and not to edit directly. However I am having trouble dissecting the code and knowing what exactly to change in order to make the XML output go from VAST 1 (or 2 maybe) schema, to VAST 4 schema. I am willing to pay $100 for this project. What I would like is for you to install on your side, Revive Server, and you can modify the source on your end, and once the Video Inline Delivery invocation code produces VAST 4 schema instead of VAST 1 schema, you can show me an example, I'll release the payment, and you can send me the code modification(s). Thanks!