DIY's are alright. Really they work fine. The biggest draw back is having to fix your stance and no inside metal edge when touring. Not a big deal until you get on some steep side hill. They you are really wanting that metal edge. Crampons will help alleviate that problem though. Does Karakorum come with a kit for a DIY install? I know they are compatible with the Voile pattern so I didn't know if they had considered the DIY market. Shouldn't be too hard to do it, but it would be nice if they had hardware for the conversion.
You don't need the inside edge, it's just nice in certain situations. I go out with a couple of guys who have DIY's. Just get some crampons with your Karakorum's just in case it gets hairy. Looks like in Cananda that can happen often enough to warrant having a pair.
Yeah, I would just put in your order for crampons as soon as you can. You will most likely not need them until late January, early February anyhow. You need good coverage to even consider going up stuff where you would need that sort of grip. At least that has been my experience around here.