Hey Venom, very good to see a fellow Cdn! I'm in Vancouver btw. Anyways, I was gonna do that as a last resort, but just got the smart lock grips in the mail today and I'm happy with them for now. They're a perfect fit, and slim enough. Only thing is, they're rubber and I'd prefer the sandpaper texture, so I may end up doing what you said, with skateboard tape or something. But I'd have no problem recommending Smart Lock. I was kind of leery about their semi professional website at first, but they responded to questions and were quick to ship. Also, I found out after the fact that the owner is a respected local firearms instructor. Anyhow, let me know how it goes if you end up getting the guide rod from them, I may be interested in replacing mine as well.
Cheers!