I would assess the position as thus;
We have interested parties who have the funds to meet the asking price. I say plural, as a period of exclusivity has been granted. It may be a belts and braces exercise, but it would suggest there is at least some concern of being gazumped.
The preferred bidder has enough money to meet the supposed £150 million asking price, they're in the process of carrying out due diligence to see if our years of austerity are as advertised. Within that period, as long as the books satisfy what was described on the sale document by BoA, then we will be sold.
What else you can read into that, I'm not sure, but I would make the two following assumptions.
1) For whatever Randy's faults and the valid criticisms we have of him, he seems a genuinely decent bloke, who has stated that ideally, he would like to sell to somebody with good intentions. Whether that's possible or not, remains to be seen.
2) If you have enough capital to spend £150 million, you're not short of a pound or two and you're not making such an investment merely to let it wither on the vine.