My guess: 1p offer is from Derek Chapman, the £1 offer from Norman Cook. I'm only guessing here though. I've not been told who the other shareholders who made offers are.
Snap! Like you, I'd just be guessing. Assuming the non-Director shareholder has offered £1, as DK says, I would expect the requirement for an independent valuation to fall away, since both buyer and seller have agreed a price. The auditors are only coming in because DK wants £1 and the Director Shareholder has offered 1p.
Of course, if the deal is done without an independent valuation, a key part of what DK says he wants to happen will not - the shares would go to the unnamed non-Director shareholder!