Hmmm ... it seems you know as much about it as I do.
One question you may actually be able to answer though ... what exactly is the "The Brill Building"?
Let's take it from the top.
If there is a directors loan account it has to show on the balance sheet.
The balance sheet is the one item which MUST be available to the public through Companies House.
A PDF of all the balance sheets since inception of "The Fund" is available for down load on the appropriate Companies House web page.
There would seem to be no Directors Loans showing on the balance sheets.
I conclude there are none because to not show them is illegal.
In the alacrity of some to show the McCanns being masters of the uninverse the implication is "The Fund" have somehow hidden something.
Paradoxically I do not think "The Fund" is stupid enough to act illegally whereas seemingly some supporters do.
The Brill Building was/is place in New York where song writers sat, like battery hens, penning songs all day.
I sometimes think there is something similar at the back of this when more than one person starts to trot out the same expressions, words..................etc. Check out Amos 3.3.