I just purchased a 20 year old cape cod with elec. BB heat. Had a chimney installed for a wood stove, which works fine, but there is no outside entrance to the basement. The land lays wet and has drainage pipes around the foundation, which empty into a sump pump in the basement. This all works fine, but I am concerned about tearing out a wall to have an outside entrance added. I thought about one of the one-piece fiberglass stairwells, but can't locate a source. Any suggestions?