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They are the 'ungraded' LW figures.
Here you can see an article and photos about how I repair them:
http://www.freeweb.hu/saswargame/index.php?type=article&value=26&article_language=eng&language=eng&filter=author&first_image=1
I had forgotten about those LW figures. I actually read your article before and considered converting them. But as you said they are quite expensive for having so few figures.