Wow - that's a really cool hutch! My main advice would be to remember that if it's been a pet it'll probably have been used to lots of attention and affection and may well have been a house rabbit. So if he/she does respond to you, you'll get a lot of response to any attention that you show. Also, a trip to the vet to establish its sex and as stated above Myx and VHD vaccinations are a must. If it turns out to be a female, spaying is essential as unbred female rabbits are very prone to ovarian cancer. Umm.. only other thing is keep a close eye that it's eating and crapping OK in the first few days, as rabbits are very sensitive to stress and can suffer from stasis which is basically when their gut seizes up, which will result in death in 48 hours.
Not an expert by any means, but if I can help feel free to pm me.
ps you're nowhere near Shropshire are you? I've just lost a grey dwarf lop.
I wish I could say it was yours. My mate is in somerset and were in south wales
