Hello Frank,
A viable solution for the early type - thanks for sharing with us.
Nevertheless, I personally prefer the original looks of the older/smaller type although the later ones are more user-friendly.
The old style hand wheels ar NLA, you can, however, use the W110 fintail front quarter window adjustmend turn wheels. These look absolutely identical and are (quite) cheap - about 7 Euros or so; I have to dig for the parts number ...
The center opening needs to be adapted to fit the early style seat shafts.
Best,