I used the KFS Kenworth exhaust shields on my 1980 W900 AeroDyne, and they do not say "Kenworth". They have the KW Bug on them. Here's a WIP shot of them on the W900:
That's a great looking combination. The Moebius Great Dane trailer looks perfect behind the Volvo. Those decals are from the Italeri reefer trailer, right? Perfect for Texas.
I haven't seen any P/E for sale for the 1/16 semis. There are some people doing some personal castings (wheels, tires, engines), but no P/E that I know of.