Wow, that's a big hole! A little fudge factor eh? There are a couple of things you are going to have to consider. 1. The clearances required for the position of the stove (whether angled, or the back flat to the wall). 2. The hearth requirement for the positon of the stove. Having a hearth next to a doorway is a pain to deal with. There are several stoves available with right side load only that may fit the bill if you choose to put the back towards the wall. This would keep the hearth from sticking too far out into the room, as the hearth requirements at the front are different.