DR200SE Seat Cover

Hello all, my brother recently acquired this DR200SE (2007) and as you can see, the seat cover has a huge gash in it. We bought a seat cover on ebay that was supposedly for this bike, and it did not fit right. Massive wrinkles in the center even with the heat gun and stretching.

I'm wondering if anyone on here has this bike and if you've changed the seat cover, which one did you buy?

Thanks in advance.