I somehow doubt that Norwich would accept a measly 25m for Buendia considering that's the price they got for Godfrey. They've got parachute payments to lean on as well, it's not like being relegated instantly makes them easy pickings. In fact, yo-yo clubs could come out pretty nicely if they don't sell off all their best players and go into freefall.
I want Buendia. I'm not convinced that he's better than Aouar and I think Aouar is more versatile, but I see them as relatively equivalent talents. What we don't really know is how they compare in terms of character and mentality.
If Buendia goes I could easily see him costing about as much as we bid for Aouar.