Will there be one account for 3 guys or 3 guys with respectively 1/3 funds in their accounts?
If distribution (ratio) of the unclaimed funds has already been decided, then I think it's easier to let each handle one fund (Easier for accountability and record keeping).
If distribution of unclaimed funds has not been decided, and it's going to be another long debate over it, I suggest divide it equally and they will reallocate once the ration has been decided.
Marketing has been decided at 3 million
Tech/Infrastructure the remaining 6 million. Once we know the cost for the 1000TPS hubs, then we will know the right allocation between tech and infrastructure.