The main issue is with the gearbox. As long as you leave that alone you'll be fine. The funny thing is I recently saw a gearbox assembly being sold on eBay by someone who experienced the same frustrations as I did. That made me feel a little better that it wasn't just me. The description stated that after grinding away on the inside of the halves, and using the toothpaste on the gears trick, it finally loosened up. They claimed it took them many hours. I don't know if all of them came from the factory with ill-fitting gearbox components or it was only random batches. I've also never driven any of them so I can't vouch for the performance but to be fair they were built on par with or better than other models of the time. With that being said, the
dolphin is very rare. Although I don't look religiously, I have never seen another one on eBay since I bought mine (that's near mint) 4 years ago. If your body is molded in red, than it's actually from the 2wd Koala version.
I've been after a Wildebeest for just as long and came across one a week or so ago on eBay with a reserve. It only went up to $75 with me being the high bidder. After the auction was over I messaged the seller saying I'd pay a lot more for it but they refused to sell it.
