I would buy this ladder immediately if he still has it;
http://longisland.craigslist.org/grd/3083322226.html
Actually look at this photo, it is missing the two legs and the leg base that hold up the center platform.
They are PVC pipes (Schedule 40) and a plastic piece with two sockets that could be replicated using a piece of composite wood and two fittings or two pieces of composite, one with two whole bored into it.
http://longisland.craigslist.org/grd/3083322226.html
Actually look at this photo, it is missing the two legs and the leg base that hold up the center platform.
They are PVC pipes (Schedule 40) and a plastic piece with two sockets that could be replicated using a piece of composite wood and two fittings or two pieces of composite, one with two whole bored into it.