I'm afraid I can't, but I'm happy to accept that ENIC were offering the best price/conditions/vision as it seemed to Sugar at the time.
What I do know is that not long afterwards Chelsea had the biggest stroke of luck in their history when Bates sold off to RA. Now it is strongly rumoured and Sven for example has confirmed this to be true, that RA was looking at us as well as Chelsea. (The bespectacled Swede and seemingly prolific lover said IIRC 'go for Chelsea as their squad is better'). Now there are rumours that ENIC didn't take RA seriously, I know not if this is true, but maybe there's another universe not too dissimilar to ours where we end up with all the trophies Chelsea got
)
Certainly for me if there was a chance we could have had RA instead of ENIC that was the missed opportunity of a lifetime, indeed a century or more. And yes, many/most Spurs fans vehemently disagree with me on this
As to who else could have bought Spurs in 2000 or since, I know not. What I strongly suspect though is that ENIC have always asked/would ask for a very stiff premium on what outsiders would probably judge as our 'market value'.
I think we are stuck with ENIC for many a year yet, alas.