Yes he has a thicker tip, however so does the glasslite vader.
TIG guide here describing all the ledy vader differences...
http://www.imperialgunneryforum.com/t2135p255-the-lili-ledy-guide-discussion-thread-part-1#Darth Vader
He was also released on MIM (Made in Mexico) cards so is pretty easy to hunt down.
Price wise anything from £12 - £30, so i'd say £20 average in v.good condition