Basically I plan to put my rabbits in my chicken coop in hanging cages above the chickens. I have been looking into getting NZ whites and 1 buck and up to 3 does and have 30x30 cages for each. I wanted to hang 2 sets of 3 cages, one with a buck and 2 does and one with a cage for a doe ready to kindle and a grow out cage (the equivalent of 2 cages). So my 2 chef issues are space and safety from the chickens. My short walls of the coop are 7', which comes 8" shy of my preferred 90". Would they be just fine in cages that are 27" wide instead of 30" wide each? I am also concerned with the chickens being able to jump up and peck the bunnies in the cages, is this a valid concern? How high off the ground should I make the bunny cages to prevent it if it's a problem? Also, my coop is sand and works wonderful with chickens, but is this a problem with the rabbits? The coop has good ventilation and is insulated.