The County manager had been hopeful of bringing in at least two players before Saturday's visit of Darlington, but though that now looks unlikely, the donation from the Supporters organisation could allow him to sign at least one player in the near future.
Despite reportedly being willing to take a pay-cut, it is believed that the 27-year-old's prospective salary may have still been out of the Magpies reach.
The grant may change that, should Thordarson still be willing to pursue the player, who is currently out-of-favour with Colin Todd's side.
Meanwhile, Thor has also been frustrated in his quest to bring an experienced striker to help shake-up his shot-shy strike-force.
Following Glynn Hurst's exit, defensive midfielder Mike Edwards is the club's top scorer with just four goals.
Former Forest striker Jason Lee had been mentioned as a potential target, but Thor today appeared to rule-out the possible move for the want-away Boston hitman.
"At the moment he (Lee) wants an 18-month contract which is something we are not really in a position to give," the County boss told the official website.
"At this moment in time the deal is probably dead.
"Again, the ball is in the player's court but I don't think he is quite keen on what we are offering."
For all the latest transfer news and gossip, be sure to check back to NCM.