The East London side faced reigning Premier League champions Manchester City on the opening weekend, becoming the first side in the Premier League to befall Erling Haaland, who scored a brace to help his side to a 2-0 win.
When providing an update on his squads fitness, Moyes said: "It'll be a similar group to last week. Craig Dawson is doing quite well so we'll see where he is.
"We have Angelo Ogbonna working his way back from a cruciate too.
"Lukasz [Fabianski] had a knock last week and Micky Antonio had a knock too, but he's trained today."
The Ivory Coast international could be in line to make his first appearance for his new side at the City Ground, while Scamacca could be set for his first start at West Ham following Antonio's knock last week.
Moyes said: "Yes I think they're ready to start. I think it's just a decision if we're ready to play them yet.
"They're getting much closer to it, that's for sure, now they've had a few weeks training."
Premier League new boys
Having won promotion back to the top flight of English football for the first time in 23 years via the play-offs, Steve Cooper's Nottingham Forest are still looking for their first points of the season.
Moyes knows just how dangerous the unknown of a newly promoted team can be, and is wary ahead of sides' trip to the City Ground.
"They were both at home and both got positive results so we know exactly how difficult it will be going to Nottingham Forest.
"If you had your choice, you'd try not to play the newly-promoted teams in the opening games of the season, but our first away game and Nottingham Forest's first home game pits us against them."
"I've got big respect for the manager Steve Cooper," he said. "I think he's done an incredible job to get them into the Premier League from where they were last year.
"You have to give him huge praise for what they've done.
The 29-year-old had offers from both clubs but decided to sign for Nottingham Forest, a decision that left a sour taste in the mouths of many West Ham fans.
Lingard captured the hearts of the Hammers' faithful when he joined the club on loan from Manchester United in January of 2021, a spell where he went on to score nine goals and contribute a further five assists in 16 games.
"I've got to say the directors and owners here made a great offer to Jesse [Lingard], but the player has his own choice to go wherever he wants," said Moyes when asked about losing out on Lingard.
"We pushed the boat out to try and get him, but we didn't get him. He chose Nottingham Forest, that's Jesse's choice and not ours.
"It's no failing on the club that we didn't get him."
West Ham will be looking for their first points of the year on Saturday in order to build upon a promising 2021/22 season, which saw them finish seventh in the Premier League and reach the Europa League semi-final.