If you come up with a cool design and make it even, I think someone might appreciate it. I have the Kahr CM9 as well and think it looks good the way it is, I would just keep the grip since it helps with the size (for my hand at least)
I've had mine for over a year now and enjoy it. The only thing is that I really wish it had some sort of safety option. I know since it's a subcompact, you are not likely to find safetys but I'm just saying IMO, it would be nice.
Unless you are looking to trade it, might as well keep it in the car, otherwise, its like carrying a paperweight to the show. Carry a knife for protection :)
If you live in the county (out of city limits) I thought there was a minimum distance to shoot a gun in the backyard. Hmm... maybe I should consider building a shooting range on my property :)