Insurance deals at final tables?

[Nichlemn]

I've noticed at the final table of something like the Sunday Million, deal talks can come up at fairly early stages of the FT. Inevitably, some people won't talk and the deal can't work unless everyone agrees.

But, unless this would be prohibited, couldn't someone sell their tournament equity to another person, exchanging their eventual winnings for a guaranteed payout? Current locked-in prize money, + chip equity, maybe +/- expected edge based on past results, and an insurance fee. Setting aside $X if the "horse" won like in Sunday Million deals would also ensure an incentive remained to play well.

Given the risk-adverse nature of many final tablists (and with good reason - for a number their tournament equity would be considerably higher than their bankroll), it seems this could be very lucrative for someone or a group with large enough funds.

One problem is the observer chat being turned off at the final table - making it harder for the two parties to come in contact, unless another FTer would do a deal. Only if that person had prior knowledge about selling the equity and could contact someone would they be able to do so. Also, the short notice makes it riskier.