Welcome Greg. I was once the owner of a 215, and I should never have sold it. I've got a 235 now and love it, but that first love was the 215.
There are a couple of ways to mount a kicker on the back of that 215. Give us some photos of your boat and throw ideas at us about its condition and the things you'd like to do. In the meantime, I'll dig up some info on how best to mount a kicker to that thing.