Hi,
you need to PRINT the layout and put it just in front of the keyboard, then while you type you look at the print.
this way you can keep on training the muscle memory but with a visual help.
this is how i did (well, with an actual skin in front instead of a print) and gradually you won't need that help anymore.
about the skin, you could try asking if someone is selling it in France on the french bépo forum:
http://forum.bepo.fr/