That sounds like a plan
. Zooplus don’t have a massive amount of cage accessories but wheels would be a first. The trixie steps/shelf are good. I personally like the blue Savic rat tunnel. Rat Sputniks. Some of my favourite cage accessories from other stores are- small hyacinth tunnel (Amazon). Large cork log (Rodipet). Labyrinth house (Rodipet it the trixie Leif labyrinth on Amazon and maybe at zooplus). Ferplast sin guinea pig house (amazon and porton aqua pet).