Well, I think you guys are probably right as far a me going overkill...Your proposed setup sounds safe and should be trouble free. Still sounds like overkill to me and I'm not sure the heat loss won't offset the gain. I would sooner do a full masonry stove for all that work.
But, I still want to do the rock behind the stove for the walls in the same manner(just for the aesthetics) but I will probably cut down on the floor and size down the piers but still isolate/insulate them from earth and the original footing of the house but still have them doweled into the original house footing. I can take thinner limestone for the floors w/ no problem, just have to go round it up which should be no prob as I have no intention of having this done b4 spring. Just need to have it all planned out so everything goes fairly smooth as I hate not having a plan in mind so I have everything ready.
Because there is nothing like being in the middle of tearing holes in your house and living over an hour away from what you need to finish it up.(Not that this has EVER happened to me.)
But as far as work is concerned... I guess you would hate to deal w/ me on a regular basis b/c I enjoy a good day of hard work. Oh, the things my wife has had to deal w/... Its the feeling ya get after you do something that "can't be done:" by one man, in that time, that way, or b/c its not possible.
Thanks for the help thus far.