In case anyone is interested, Medicom released 9" Green Hornet and Kato figures in Japan, as a part of their Real Action Heroes 220 line. Not quite Mego sized, but very well done. At least they sort of give you an idea of how cool a Mego sized Green Hornet/Kato would actually be.
Agreed CJefferys. Here's a link on Ebay for those figures. Not a bad price for two figures in the Medicom line.
Medicom The Green Hornet Bruce Lee Figure New - (eBay item 330166350085 end time Sep-23-07 02:32:14 PDT)
Hey bud you know I got nothin' but love for ya.
I couldn't pass up the damned dirty apes line though