Do I need to get another cage?

[Pebbles82]

The trouble with making a bin cage for a Syrian in the Uk is - the Samla bin isn't quite big enough (it slopes in a lot at the bottom) and you'd probably find the floorspace is no bigger than your current largest cage. The best sized one is a really useful box but that costs about £40.

Really Useful 145 Litre Clear Stacking Storage Box with Locking Lids

It's a good size and shape though - approx 80cm by 60cm.

Costwise though you can buy a really good sized cage for that price. Zooplus sell the Alaska cage for £33 (84cm by 48cm) and the Barney cage for £49 (100cm by 54cm). Both are excellent cages on their own even without add-ons, particularly the Barney cage.

Hamster Cages | great selection at zooplus