Building A Rabbit Cage HELP?

Ok i am wanting to build a rabbit and im going to keep it inside but i was going to build it like an outside hutch but with a play pen attached to it but im wanting to know how much ( GUESSING ) how much its gonna cost me i already have PLYWOOD But my dad said i need maybe some 2x2 or 2x1 then some chicken wire to build the play pen oh yeah the cage / hutch is going to be inside the play pen the hutch is going to be 3 feet long 2 feet wide and the play pen is going to be 5 feet long and 3 feet wide .......... well wide enough to were the hutch can fit ......THANK YOU