However, after a meeting with creditors, the court ruled that the reconstruction could only continue if Saab eventually cut about 15 per cent of its 3400-strong workforce.
The Swedish company also now requires the go-ahead from the central government in Beijing, which shot down a Saab buyout by another Chinese company, Hawtai Motor Group, in May.
Nevertheless, Muller, who has kept Saab afloat for months with no production or sales, is confident that his rescue operation has finally come to fruition.
"After the better part of seven months of agony for the company, we have come to a point where we can proudly say that we made it," he said.
"I have had no life in the past two years ... my job was to save the company. I think I achieved it.
"We can be comfortable that the business plan that the company had made will now be executed and that the funding will be provided."
Muller, 52, is a Dutch car enthusiast who co-founded Spyker in 1999 and is the biggest shareholder in Swedish Automobile, which was formed after Spyker bought Saab from GM in early 2010 for €54 million.
He said Swedish Automobile would lose about €70 million from its Saab investment, having pumped 120 million euro into the cash-strapped carmaker.
Saab was forced to cease production at its Trollhattan plant in April when suppliers stopped delivery of components due to non-payment of debts, but had to continue paying employees to avoid bankruptcy.
GM remained one of Saab's biggest component suppliers.
The announcement came just in time to prevent creditors from moving to bankrupt the company, which has been under court protection since August.
The court had been due to rule on a request by administrator Guy Lofalk to terminate the creditor protection scheme last Friday.
The MOU is valid until November 15, provided Saab Automobile stays under court-protected voluntary reorganisation.
Finalisation of the sale will complete a Chinese takeover of the Swedish car industry after the purchase last year of Volvo by Geely.
Although the Spyker luxury sports car business is not part of the Saab deal, Muller has already agreed to sell the Dutch brand to US private equity company North Street Capital in a deal worth about 32 million euro.
Muller said he had spoken only briefly to GM about the proposed Chinese sale and acknowledged it would be the most difficult party to convince, but was confident the US giant, along with the EIB and creditors, would approve the deal.
"If we play our cards right, I think that they will be convinced that this is of benefit to all parties, including themselves," he said.
