JLA, Hope to get to the range Tue.
3/2 STA SS, Yes, in fact, I just discovered the MK III has more choices available and they fit the MK II also. They offer regular panels and more variety of the Ultima. Also bonded ivory panels. Here's the link:
http://handgungrips.com/MKIII_=_Ruger/1915/c
fuzebox, They may look better, might look at the Walnut or, better yet, maybe the black and silver version would contrast with the stainless for some real "bling"
Lots of choices at the link above
A word of warning; Unless you have a padded vice and a set of punches have a smith install the Weigand base. Mine required quite a bit of muscel to remove the sight and some fitting of the base.
Plus a set screw had it's head stripped and had to be drilled out and rethreaded. What my smith and I considered an hour job at the most turned into a four or five hour task. Thankfully he was kind to me.