I have the cosatto wow xl and the cybex gazelle s. I mostly use the wow xl, I got mine brand new but if you didn’t mind secondhand, I’ve seen them be put up for sale from £150+ Congratulations! I’m also due July time too. (I’ve been using this pram for the last year or so as a double) x
My mum's a childminder and has bought many virtually new double pushchairs from ebay at a fraction of the cost over the years. Might be worth a look 😊