I will measure for you tonight, but I believe it overhangs about 12" on the front, maybe a little more. There is no stability issue at the front but when I open the lid all the way up it wants to tip backwards due to the weight of the lid. I had some spare free weights laying around and I just stuck those on the sides in between the freezer and the skin to balance it all out.
I did assemble most of the parts once I got it upstairs mainly due to space restrictions and carrying it up the steps. I did all the tiling once it was assembled upstairs as well. I imagine that the lid weighs close to 200lbs with the wood and tile and cement board on there. One of these days I am going to take it off and weigh it. A friend of mine said he can get me some hydraulic props to install to hold it up but needs to know the exact weight.