Read your posts in that thread of yours.
Food for thought, no doubt. But whatever the case, the commercial risk was quite open after the cabinet, msm and certain public quarters called for 38OR to be preserved while Harry was still alive.
Just with regards to 38OR, i still believe the siblings main intent was and is to demolish 38OR to fulfil their parents' final wish.
Moreover, i would have thought LHL or someone from LHL's camp would have raised your theory by now. Any commercial gain allegation thus far has been directly related to 38OR only.