Thanks for linking to my pics of the Godzilla toy! They got picked up for some U.S. TV show a couple years ago. "This American Junkyard" or something.

Anyway, mine wasn't in perfect condition (had a little piece of the yellow toe missing, if I recall correctly.) But I still got $90 for it on eBay several years ago. However, if you have one in fairly perfect condition, eBay says some have sold at $250 USD and up recently. Here's a link to "Sold Items" on eBay, in case you haven't sorted how to use that feature yet.

Some people might be asking higher prices, but the "Sold Listings" are a good indicator of what you can realistically expect to sell it for in the current market.