"Here it is with a small ham added"
Hah! That tickled me, homeshow/phillip!
I used a sliding glass door years ago for a cold frame. The thing was so heavy though I ended up making a ballast for it. I put a cedar post in the ground on the hinge side of the door and put a pulley on the top of the post. A cable went down and connected to the opening side of the glass door, up thru the pulley and down the back of the post where the "ballast weight" was an old plow I'd had laying around. It worked great, so great in fact you could lift the door open with one finger. I also remember on windy days I had to prop the weight up on something or lock it in place 'cus the winds would too easily open the door.
Nice looking box you've built there. Have fun!
Shoe (off to trim grape vines; summer is finally here in NC)