964 Tail lights/Rear reflector heat shields

[Adidas]

I've posted a picture of the tail lights and center reflector heat shields from my 1993 964. Two of them go under the tail light assemblies and the 3rd one mounts beneath the Porsche rear reflector. All 3 are in poor condition. There is alot of heat cracking damage on all the lenses from heat coming off the exhaust and muffler.Anyone know of another option for heat shields in these areas?

[964TargaC2]

you can add heat shielding to the factory stuff but the heat will still get to the lenses, they just wont go as quickly