If you live in the UK, I can't help you. The pet stores like Petco in the USA tend to have a very nice sturdy cage that has everything you could want. Not wood. The hard plastic tray is very deep so urine, pellets, straw, hay, litter, etc don't come out, and the whole thing connects to a well-built snap on metal cage that you has at least 2 doors. When cleaning, it's very easy to clear out debris and then clean the bottom out with a garden hose. If your rabbit is litter-box trained (with a small corner box or a small kitty litter box--don't use cat litter or cedar--then you will have an easier time keeping them clean.
The cages were similar to ones I'm seeing on petco.com right now by Prevue Hendryx and WARE. The ones I purchased were solid and lasted for years. I have had 2 of them for several rabbits over the years and no rust. Some of the Hendryx ones I'm seeing are for ferrets and rabbits and have 4 tiers even. Cool. Gives your rabbits more room to move, for sure.