I will use the torso and arms and the rest from the new knights, as long as the yellow matches: most of them, the good ones, are yellow, aren't they?
http://www.playmofriends.com/forum/index.php?topic=4689.75At the last page of this topic you can see how the yellow legs match up with the yellow torso's from 3666. I think its good enough to work although not 100% perfect!
Thats nice Gis! I had forgoten them... They look great!!!