I don't think an original mount will work. It places the link much lower and will mess up the geometry. I know the 1x6/7 bracket looks like it would cause interference with the fender pan but it doesn't. Here's some pics for comparison.
I would encourage you to get the correct fenders for your 102/122. Your 1x2 frame doesn't have the correct holes for the 1x6/7 fenders or 3 point bracket (unless someone drilled any of course) and having the correct sheet metal will increase the value.
I think you'll be happier in the end to just get the right fender setup but it is of course your decision. Good luck with whatever you decide
