So, I'm about to get carbon fiber heat shields and I just ordered screws to attach it that are made out of PEEK (Polyether-ether-ketone) plastic that has a very low thermal expansion co-efficient and is resistant against heat up to 500f.
The resin that coats most carbon fiber pieces is very heat resistant and has very low thermal expansion and they will be attached with material that is also very low thermal expansion. My hope is that I'm able to touch the shields with bare skin, after a long run, without getting burnt. I'll report back when I get the parts in and test everything out. Total price for the shields (carbonfbr.com) and the PEEK fasteners (mcmaster.com)--I got screws and washers--and shipping is going to run me about $260 USD, which I find to be a great deal in comparison to KR-techno.
It'll probably be a month or more before I get everything in, since the shields are made to order and there's probably a waiting list.