Try this: I use the clear plastic lense from a "googlie eye". Just select the size you want and remove the back with a hobby knife. Hobby Lobby carries them in multiple sizes, even an assorted pack
I've got one as a parts kit, used the body and chassis to build a late model stock car. You're welcome to what's left, including the decals. Just PM me your address
I have a Kyle Larson kit that I'll be building with the Chevy engine. So, you need Honda plenum to turbo tube. I can send you both, left and right sides. PM me and we can work out the particulars