Thx for the responses.
I followed the link to Max's and was told that part wouldn't fit my k bike, but another one should fit. They never got back to me for which one does specifically retrofit that is still readily available.
HOWEVER, just by dumb luck I was able to find a set of the retrofit guards I was looking for in the first place that was sitting on the shelf at RE CYCLE.
Gonna go try em out now! Should be a good day for a test as the temp is 28f.....glad we're on the good side of the solstace.