Motor for 01 rancher 350 ES 4×4 – does it matter 4×4 or 2×4

was told by my dealer I need a new case for my current motor.

bike is an 01 rancher 350 4×4 ES.

There are a couple of replacement motors on ebay from $700-1300. Basically the more you pay, the better you get, warranty, rebuilt, etc.

However there is one about 8 hours south of me ending tomorrow morning on ebay. guy says he sold the bike so he doesn’t need the replacement motor. Good motor. currently $400. He hasn’t listed the year, or if it’s 4×4 or 2×4. Just lists as a honda 350 rancher motor. I can see that its an ES model by the case, just can’t tell if it’s 4×4.

So my question is, does it matter as long as it’s an ES motor, if it’s 4×4 or 2×4, and will it work on my 4×4? I have till 8am central time to bid tomorrow!

here’s a link to ebay listing:
Honda Rancher 350 Motor | eBay

figured switching motors would be easier and faster than trying to swap everything into a new case. No telling what else if I went that route even though it would be cheaper.