Indoor cage for bunnies that's fit for purpose

[m0therofdragons]

We rescued a bunny a couple of years ago and he was easy to litter train so had a 120cm cage with a run attached but spent all evening hopping round the living room. Then back in March we rescued a second bunny who we gradually introduced to bunny 1 and all was fab (after bunny 2 had had 2 operations due to previous poor care - he was only 4 months when we got him). Anyway, he's not even vaguely interested in litter training so we had to buy a larger cage. Ended up with a chicken coop as it was the only thing we found big enough and it sits in the conservatory. Being wood they've nibbled it and we wee leaks through the base. I miss the ease of the old plastic cage and hate having wee on the floor every day, even with a plastic table cloth under it.
Does anyone have a suggestion for an indoor cage that's a good size with a deep base?
I've seen this
www.worldstores.co.uk/p/Liberta_Extra_Large_Rabbit_Retreat_-_Cage_and_Stand_154cm.htm

Or I have a metal run with no roof that would be good if I could source some kind of base.

Any ideas?

[Gerritsen]

You could use carpet tiles for the base, but turn them upside down so the rubber is facing up (much easier to clean).

[Boozena]

I went to a local carpet shop and gtit an off cut of lino that I put a large metal run on for my two whilst we litter trained them. It worked really well. I have a feeling they gave it to me for free but I'm sure it wouldn't be expensive.
I'd be careful with the edges of it if either are chewers though!

[woollybean]

I have just got this one to keep my rabbits in at night and I am thrilled with it. They do an even bigger one but this was the biggest we could accommodate. Good price too!
www.littlepetwarehouse.co.uk/rabbit-140cm-large-indoor-rabbit-guinea-pig-cage/