Our covered back porch is about 9'x18'. The stairs down are really worn and some of the railing slats (and maybe floor boards) might have wood rot. I think it has settled a bit too, as it slants slightly away from the house, nothing too major. We're looking to sell our house soon and I'd like to fix up the porch without tearing it down and rebuilding. It's just not in the budget. Can we replace portions of our pourch at a time? Can I replace the stair boards without having to relace the entire staircase? Will that be a turn-off to prospective buyers?