Pretty sure it"s up to the seller who they sell to as long as it"s done at face value.
Spot on Laxie.
Although, I would add one point, and this is not a dig at the op, but if you are going to sell your seat privately, just post when it"s done. There are still a lot of people keen to get a seat for this event and it will save everyone time and frustration.
Hope the transfer goes okay. Make sure you have both confirmed with APAT customer services that the transfer sorted.
Leigh