Separate pad for keyboard?

I bought a 900x400mm mousepad maybe a year or so ago and it was awesome! Unfortunately 400mm is a bit deep for my desk and I’m looking for something around 300mm but there aren’t that many options. You’ve basically got the Corsair MM500, Glorious Extended and Razer Goliath Chroma Extended but I’m open for suggestions.

I won’t be able to ever go back to having my wrists directly on the desk again and thought about some sort of alternative solution with a regular sized square mousepad and an additional pad/mat to have under the keyboard. Has anyone done anything similar? Maybe two square mousepads? I’ve got a 65% so it doesn’t have to be massive.