Is it with Belgian AZERTY-layout (French language), like this ? :
http://upload.wikimedia.org/wikipedia/commons/4/41/Belgian_pc_keyboard.svgDepending on what caps are missing,
it may be very difficult for you to find them anywhere else than in Belgium,
from another old Model M .
Also, there is a slight visual difference between UNICOMP/IBM-legends that may annoy you over time .
Because Unicomp are a business, and it shows on the parcel, the shipment will most likely be customs-processed
and subject to Import Sales-tax and whatnot, that happened to my last shipment and it nearly doubled the price !
So, having a friend in America send you a present is a great gift !
(Have you tried asking on Deskthority ? IIRC, international shipping from Unicomp costs the same if you buy 1 or 10 sets ,
so a small groupbuy would save a lot on shipping . )