I'd say no to the gun. The need to go shooting wears off soon, and there is too much cleaning involved. I've got guns, and paintball guns that are just sitting in my closet.

The motorcycle option is very attractive to me, are you into sports-bikes or cruisers? If you're into cruisers I'd say put the money into ball pythons, lol.

With $1000 you should get a nice desert, clown, mystic, or pied and start a breeding project.

That's what I'd do.