FS: Corsa concepts carbon tubulars w/chris king R45 hubs/challenge tires

I have a very well loved pair of tubular wheels for sale.
Maybe you want to fix these issues and run this wheelset or maybe you just want to buy this set for the hubs?
I am pricing it accordingly as just the hubset new is much more than my asking price.

Asking $350

-Corsa concepts(unbadged) carbon 50mm rims 28 hole
Brake track in decent shape but well loved(I'd use them at least another year)

-Chris King R45 pewter hubs(shimano 8-11sp freehub)
Rear spins nice but front is seized(easy fix). I installed the 11 sp freehub when I got the wheels but never got the wheel re dished so it's currently dished for a 10 speed hub. (Again an easy, cheap fix.)

-Challenge Baby limus team edition
Tires saw half a season of use in mostly dry races and tread is in great shape
sidewalls show a bit of rot.