26” 28h tubeless carbon rims

Unknown year/brand 26” tubeless carbon rims in 28h with 27mm internal rim width. Rims are structurally in perfect condition, but do have their share of rock scarring. Spoke/nipple interface is free from any signs of stress cracking, and the rims in general have no delaminating areas or significant impact evidence. Was planning an building an ultralight DJ wheelset with these, but can justify buying more hubs when I already have a half dozen unused 32 holes in the garage. Looking for $300 shipped anywhere in the lower 48.