Where the win/win...? Look, just bc you go to tech1 doesn't mean you're going to come out and light the world on fire with your new found skill set. It takes time, a lot of time and a lot of projects to become a good programmer. You're proposing an end user get certified, download Pro and if Im understanding you correctly, put himself out there to not only work on his own system but offer services in a setting like this. Where no doubt he would charge next to nothing and more than likely create issues for the original dealer next time he has to do an onsite. Sounds like a disaster to me.
Not to mention, what happens when this programmer hits a wall and can't solve a problem, who's he gonna call? Trust me, C4 wont open up a special- DIY/certified, money making on the side, amateur programmer tech support hotline.
Not everything gets solved through a remote connection, even for us, the professionals.