The fourth and final qualifying round encounter, with Sky Bet League One side Fleetwood Town lying in wait for the winners, will be played to a finish on Tuesday night, with extra-time and penalties on the agenda if required.
With admission prices cut, Pilgrims' officials are hoping for a bumper turnout for the eagerly-awaited clash against Matt Jansen's side.
Saturday's first tie ended goalless and United finished with 10 men following Jan Yeomans' 71st minute red card.
United boss Adam Muray, whose side have already beaten Chorley on home soil this season, expects to have a full squad to choose from.
Ashley Hemmings and Kabongo Tshimanga struck the decisive blows in August as the Pilgrims prevailed 2-0 over the Magpies.
Tuesday evening's match referee is Wayne Cartmel and match updates will be available on Twitter.