If it has been wild this long, it has developed the ability to survive. If you're comfortable picking it up, you might check if it is a buck or a doe. If it's a doe, you might want to let it go, as they hide their litters (only need to feed twice a day for about 5 minutes). You might be trying to adopt a mom who has kits. If you keep mom away from the kits, they will all die. Its been wild for 7 months now, right? I think it is kind for you to be concerned, but keep in mind an old rabbit in the wild is only about 3-4 years old. Normal lifespan. Hope you don't mind my 2 cents here....I raised rabbits for some time and honestly, they don't do well on farms with chickens: they get coccidia and are unthrifty. That's my experience. Good luck!