Wheelbuilding / Wheel Building / Wheel build help

So, given that the rim I posted above sounds like it’s toast, any advice on deep track rim options (24h)? From a search of the thread and my initial thinking, it looks like my options are:

• look out for a 58mm rim on eBay (relatively cheap, tho led the quality issue in the first place)
  
• New 60mm carbon rim and maybe reuse the spokes (c£100+), or a 50mm to match the front and new build (spoke cost on top)
  
• Rebuild F&R rims with deep alu rims, H+Son SL-42s? (Pricey)
  
• Rebuild F&R with mid-depth alu rims and sacrifice Aero (DT511DB or XR31T, or even Open Pro UST... Still fairly pricey when factoring in a new front hub)
  
• Flog the front carbon and stick my nice Mack rear hub in a box until I have enough cash not to care about the cost of sorting the problem.
  
  

One final thought on the original rim... It has a metal inner ring on the spoke bed, does that mitigate the compromised integrity from the cutting around the valve hole? Might be more of that wishful thinking.

A bit gutted about it all tbh :(