Tobar said:
As for the ESB AT-ST. Someone has actually recreated it:
http://www.therpf.com/showthread.php?t=49152&highlight=at-st
There's links to some reference as well. Perhaps you could get into contact with this guy and see if he could help you build your own or something.

Thanks for posting that link.

I've always preferred the ESB AT-ST to the ROTJ ones (they seem more sinister, elegant in a menacing way) and now I can get a nice close up view.

If I had my own way I'd replace all the ROTJ walkers with ESB ones The long legs add a weirdness to them which harks back to their Wellsian origins.