No I don’t ,I did think the same thing as this cover cost me 70$ aud , there is a guy on Instagram that prints his own grips for different machinesNice.
Just a thought - do you know anyone that has a 3d printer or do you have access to a 3d printer? If so maybe get them (or yourself) to knock out your own cool ideas for cam cover? Thingyverse.com is pretty useful that which people have made 3d printed models for lots of cool stuff. I've not seen any cam covers on there but maybe you could be the first?