My take on this is that Dr K is playing quite a hard game with Peel, the Stadium company and the council.
Unlike Ecclesstar I cannot believe that Sale have any input whatever into the negotiations other than that they (presumably) have a contract with the stadium company that would survive even if the good Dr buys the stadium Co as well as Salford.
The council are between a rock and a hard place - if they don't play ball then they lose everything (but then it's public money so what do they care?) - so I suspect they'd love to see a full buyout and get some cash back into their coffers (BUT did they actually stump up cash or borrow it to finance their part in the stadium build? - if the latter then early repayment could actually cost more than seeing the loan out!)
Peel are the unknown quantity - clearly as a company they play a very long game and have their own strategic ambitions. It may or may not be in their perceived interest to lose ownership of the one tangible asset in this whole sorry saga - who knows?
It wouldn't surprise me to see some form of joint venture between Dr K & Peel emerge from this - obviously the Dr has hit the nail 100% on the head in realising that you just have to have control over as many income streams as you possibly can and I guess those negotiations are taking the time.
Just be patient folks - these things do take time and Dr K didn't get to his current position by taking hasty or wrong decisions.