Hogue does make a rubber grip but it's that universal one that fits a lot of guns (Hand All?).
If this gun is going to be for CCW duty then wood may be the better way to go depending on where you plan to carry it on your body. If it's going to tucked away in an Inside the Pants holster the rubber grip will start rubbing againg against your skin and that sort of abbration gets old real quick. Just rub a pencil erasure against that part of your body, you'll see what I mean.
Checkered wood grips is another option but the feeling is gonna be similar to the plastic ones on it now. They just look nicer than plastic or rubber I think. But then again this is going to be a functional gun.
I have four different holsters for my PPK/S (S&W). A fanny pack I picked up at the range that has a rip cord for instant deployment ($20) just don't get it in black, that just screams "GUN!". A Galco USA (Ultimate Second Amendment) Inside the Pants ($45). A Galco SOB (Small Of the Back) that is proving very comfortable but a jacket or sweatshirt is required to use it (eBay-$42). And an older Galco SOB that sits horizonally that I'll use in front on my left front as a crossdraw for driving (eBay-$35).
So depending on the time of year and the weather more than one system may be more prudent and more stealthy.
BTW- Shoulder holsters are RARELY comfortable.
Also, be sure you have a belt that is heavier than normal. Again Galco makes some NICE NICE belts that don't look like Police gear. I have three. The CB-2 (Curved Belt) in Havanna Brown for dressy occasions ($90), the SB-1 (Sport Belt) in Black for a little more every-day use at the office($68) and an SB-10 (Sport Belt) with fancy stiching in tan for leisure wear ($88 ?). These belts are VERY strong but not overly stiff. The SB-10 is still a little new so it gives that creaking sound that new leather gives. All the buckels are solid brass (not plated) and Galco makes them in their own factory.
I did have a Bianchi B24 belt but it wasn't close to being strong enough.
Take a look--
http://www.usgalco.com
Catalogs are $8.