I was actually planning on starting a YouTube channel with this being my first series, but would gladly turn the idea over to you guys as I believe you could do it better justice than I.
IDEA:
Assign a really jenky budget to someone or a group of people to build a barely functional rig(s) that they will then use to compete in a challenge with against other people/teams. Scoring would come down to mainly 3 categories: %30 benchmarks, %50 main challenge, %20 from seeing if the rig can be flipped for a profit. Basically the person or team would be told what the challenge was going to be and then have a day to surf eBay, Craigslist, Amazon, or maybe even the surrounding neighborhood to put in the orders for the parts they would need. Once all the parts are in, PCs would be assembled for benchmarking and the challenge would begin sometime following. Once the challenge is over, the participants could be given something like a week to try and flip their rig(s) for a profit in order to earn some extra points. As for a prize, I personally like the idea of a comical punishment being bestowed upon the losing team or something to that effect. Ultimately, it would be up to you.
EXAMPLES:
1. $250 workstation
Challenge: Use Blender to create a 3 minute 3D animated movie that's %100 solo/team developed (i.e. no downloading or using premade assets).
Time limit for challenge: 2 hours
Judges: LMG's graphic developers
2. $200 2v2 LAN party (Halo)
Challenge: Split the budget to assemble 2 PCs capable of playing Halo: Master Chief Collection and face off in a battle or tournament of 2v2 matches.
Time limit for challenge: varied
Judges: Scoreboard
I have way more ideas for challenges and I assume you wouldn't have any trouble finding additional challenges either, but I think you get the idea.
Thanks for hearing me out, and if you could, please let me know what you guys think of the idea, even if you don't think it's for you.