I love conversions generally and I have a converted DE cold one for my Saurus cowboy. However I bought that un off eBay, so seeing how people do it would be awesome.
OK, we got the 80's metal version ridded my skinny slan, then in 5th edition we got skinks riding the metal raptor like cold ones/horned ones, then in 6th we got the first plastic Godzilla looking cold ones ridden by metal Saurus, then in the Lustria Campaign expansion we got the current all plastic model. all along the dark elves have been getting the same models we got, sometimes they lagged a version behind us though. this is why we where disappointed that we didn't get the New plastic/finecast version that the Dark Elves got in 8th.