Saffron they really look quite nice and they can be more than adequate and cozy without taking over your garden-i assure you your partner will be glad of them if you intend on having a multi-cat house unless your house is huge-with plenty of rooms
Have a look on different websites and see for yourself,honestly i would live in our runs and you really could eat your dinner off the floor they're so clean and comfortable with everything they need and could want and they love em-sooner or later you will i'm sure have to seriously consider catruns/stud runs or your home will be totally taken over-it will anyway-but more so with cleaning/playtime etc and with studs and queens-well it can get stressful also they may want/need their own space away from each other in order to be the happiest they can be
Though your just embarking into the breeding world,you will surprise yourself how quickly your cattery grows-without you realising or intending it too