I can help you out. I collect plushies. I have lots and lots and lots of them.
It is a rarity 98. Which is quite rare. You should be able to get about a million for it. Maybe more. That price is my cutoff on rarity 98 plushies, but others might be willing to pay more for it. Especially if it is the only one on the TP right now. Your best bet is to advertise it on the BD board (lots of people advertise high rarity plushies there) and to scope out big plushie collectors--see who doesn't have one--and write them about it.
Tested made this fabulous set for me!!! Isn't it great?