Central defender Reid, sidelined with a back problem since suffering a spasm in the recent win over Leyton Orient, returned to full training this week.
"Paul Reid has trained with us and we did a double session on Tuesday and he has done it all, so that shows a really good sign for us that he could be available this Saturday," Iron manager Brian Laws told the club's official website.
Goalkeeper Sam Slocombe, who has missed the last six games due to a torn thigh muscle, is also close to a return to action.
Laws added: "Sam is in with us now and he has trained with us in the last couple of days.
"He has done a huge amount of kicking and we were waiting to see if there had been any reaction."
Laws drafted in Norwegian goalkeeper Erik Johansen on loan from Manchester City as cover for Slocombe.