Poor DSL setup affecting Home Network

I’m trying to help a friend get his Playstation 2 setup for Internet access. His home was setup with DSL on separate lines from phone lines. He doesn’t have DSL in every phone jack, just one. His PC and modem are over 200 feet from his Playstation. He bought an HPNA with an adapter to resolve the jack issue, but he still needs to convert his Cat 5 PS2 to the RJ45 wall jack. Is there a way to do this without buying another router/modem? He doesn’t want to run 200 ft of cabling with a repeater through his house.