Rellascout, you could easily buy a set of standard 1911 slim grips and bobtail them yourself. I'm fixing to say the dreaded word here on the gun boards, but a Dremel with a cutoff wheel, sanding wheel, and some sandpaper, as well as a careful hand, and you have instant bobtailed grips.
Personally, I haven't come around to the slim grip craze. I kind of like the scallop that protects the plunger tube myself (which most slim grips lack), and I can't say that the standard grips have ever been too fat for me, but hey, what do I know? Maybe I'm missing something great, I dunno.
Best of luck getting what you're after anyway. Show us some pics of the new furniture if you get any.
Best,
Jason