Replacement air box - 200 tai defender

Looking to put an aftermarket air filter in the engine bay - not because I'm a rude boy but because my roll cage means I've had to make an adapter to connect the air box to the snorkel - which is a narrower diameter pipe and keen to have no restrictions on my new rebuilt engine. Anyone done this? After something low key and simple and easy to change filter. I guess I could just leave the pipe off the back of the air box?

Also would want an enclosed one as the engine bay isn’t exactly water tight