Just an update,
The NOS Profil 20 rimss finally got to me this afternoon from France. Beautiful rims they are but just a bit on the heavy side which I think is pretty much normal with most Aero profile rims, because of the added rim material compared to box section ones.
I was expecting to see some sort of small eylette on the inside of the rim where the nipples will sit on, but I'm surprised to see that there are just holes but nothing else, so the nipple heads will sit directly on the rim material. The holes do not even seem to be chamfered to ease the edge of the hole for the nipple head to sit in. Is this normal? Do I indeed not need anything else and let the nipple heads just sit on the small inner holes directly with no washers or anything??

Chombi