I can recommend the 6x2 Happy Hutch with 6x4 attached run for anyone getting rabbits for the first time. There is plenty of space for two small or average sized buns.
I have carpet and fleece in the bed area lino tiles on the floor through out and a litter tray to one side where the buns sit and poo/eat from their hay rack.
All doors open so it is easy to clean.
I bought this run via the website it comes flat packed for self assembly. Not difficult to assemble but much easier with two people.
I have a similar hutch at the top of the garden which A door as been added to. This allows the buns access straight on to the garden and they can go in and out when they please during their free ranging time. I also cover both hutches with a tarpaulin at night.