I think this is the one Pascal is talking about
BEAST WARS TM-01 OPTIMUS PRIME
If not, either way this is the one id suggest to get. He's a deluxe scale which goes perfect with the rest of the BW gang.
However if ur looking for true original scale (Ultra class) then id suggest the Sales thread or ebay. I used to own him and he was just too big for me. But then again i try to keep my collection screen scale accurate. lolzzz!!!
I personally prefer the one in the pics. I found one on ebay a few months ago for about $35CDN. got lucky tho, he was hard to find.