Keeping in mind the consumer space will see minimal trickle down from used datacenter electronics in ~3-5 years from this boom.

The GPUs are generally rack-scale integrated units rather than PCIe. The bulk of the GPU RAM is HBM, so not very scavenge-able for consumer GPU mods. Power consumption of the blackwell GPUs in most solutions like the DGX B200 isn't really viable for home use even if you had the space and hookups for a fraction of the original 10ru system. The hard drives and SSDs will be likely be shredded on site and never re-sold as used. RAM will be registered ECC, only suitable for server-class motherboards.