Its nice to know the frame set is the same however I would think the ride out of the T800 fork may be more forgiving on rough roads.
This was part of my reasoning (along with price) for going with the T800, but it is a pretty heavy-duty fork with next to no give on it. If it is the only thing influencing you, go the T2K.
Run the tyres at 40-50 PSI if cushioning is an issue.