With back of the napkin cost estimates, from highest to lowest estimated costs!

1. Brand new non-pyramidical state of the art 5,000 seat arena: $155 million - $3,675,000 in steel recycled to China = $151.325 million
2. Replace the entire roof after we host the NCAA MVB National Championships in 2024, and upgrade or repair anything else like the HVAC system: $108 million - $3,675,000 = $104.325 million
3. Remove the roof and reuse the materials in a much gentler slope as a substrate for laying more conventional roofing materials: $77 million
4. Make repairs to the existing roof: $56 million
5. Laminate the Pyramid section by section with heat resistant / reflecting / non-shrink non-expansive laminate similar to the space shuttle materials, overlay laminate on itself for a tight seal, hope it doesn't collapse by its own weight: $58 million
6. 28,000 cans of pyramid blue flex seal at $15 a pop, seal inside and out at least 3 coats and hope to God the seal flexes with the structure and doesn't collapse on itself: $420,000 for materials, $43 million for labor and insurance, $43.42 million
7. Upgrade the Gold Mine expand it westward by twice its current size, go up another story, voila instant el cheapo newish square style non leaking 5,000ish seating arena that still says '49ers' and 'Gold Mine' emblazoned on the court floor: $37.88 million and change