Hi Soundwarrior,
I looked around for some shaped buttons unsuccessfully. I'm sure they're out there, I'll post back if I come across any. One thing that might work is just applying a dot of superglue to a few buttons to help you get your bearings, similar to the way many computer keyboards have a raised area only on the f and j keys that still allow you to find the home row. The v4l is only 3 rows high, and at least for me the whole thing can fit under my hand so it's not difficult to tell which row i'm on.
Can't help much with the case though, sorry, mine is acrylic.