BTinNYC have your friend look at the new 3T Strada, which with the SRAM Rival AXS 2x drivetrain has an MSRP of $5.2k.
The Strada falls more on the Race side than the Endurance side of the geometry range, but it’s a comfortable all-‘rounder offering good fit adjustment.
The base wheels are Fulcrum Rapid Red 900, the hub for which is virtually dead silent. The rim is shallow aluminum, and they’re heavy, but do have a healthy 23mm internal width.
Although the Strada Force 2x model, which uses the same wheelset, has an MSRP of $6.9k, I’ve seen good discounts on those, probably because the new Force is here and they’re clearing stock of Stradas equipped with the older Force, so that might be worth your friend having a look at, too.