To answer your question I guess anything is possible, but I would not recommend adding a loader to a JD 216. The hydraulic system you have on the tractor now does not have the capacity to operate a loader and the tractor is way too small to do any useful work. Also the cost involved would be way more than the value of your existing JD 216. The picture posted by another member is of a JD 318 which is a totally different tractor and even on this tractor a loader is near useless in my opinion. Trust me I have owned one.
Ken