What's the problem with the existing hood? My Roadster hood is from 2005. I've reproofed it once, but it's still fine.
If you hardly use yours, make it last a bit longer.
Mohair us amazing to look at, but it will fade and rub, and it will leak though the stitching over time. And bird poo will stain and bleach it. Coloured mohair fades more than black and shows the dirt more.
So everflex/pvc is more practical, it just doesn't look as good, but doesn't rub and doesn't appear to fade. And bird poo won't affect it.