2G Body Trim Clips

[iceminion]

Ok guys, in the process of doing a complete restore on my 2G I took all the trim pieces off, and to my dismay, many of the clips were broken!

So I went to the dealership to get replacement clips, and they were over a $1 each, that adds up quickly when you are buying 32 "round" clips" and 16 "square" clips

The round clips are MB696120 and I have found them on ebay for cheap, and the closeup picture is of that also.

What I cannot find is the square one that goes under the car, I do not have a part number for it, I have highlighted the clip in red on the passenger side body molding.

Any help would be appreciated.