Plastic Theoden Mounted Model Availability?

Hi! First post but I had a question for the community. I’ve gone head first into MESBG after playing Star Wars Legion for a few years, so I’m relatively new to the game (the last year of last edition).

I really love the look of the plastic mounted Theoden kit, with Snowman not quite rearing but like really thrust forward mid charge. However I have not been able to find this model anywhere. I know GW products (especially for this game) go in and out of stock, but I haven’t seen it at any third party retailers, and weirded still I have only seen like two of these models on EBay (painted for like $120 each). I buy models on eBay pretty often and since Rohan is one of the “main” factions there’s normally a lot of Rohan stuff on there, but with this model (and I’m assuming it’s newer since it’s plastic) I just can’t find it.

Any info would be greatly appreciated! I have interacted with the community on Reddit yet but the overall community for the game seems amazing so I figured I’d at least ask.