You are right, it is the UH-60L Correction/Update set (correction made above).
I don't have any pics handy, but the common interior seating layouts are either no seats, only 4 seats on the back wall, or the 4 seats against the back wall and 4 seats running down each side of the cabin facing the troop doors. The gunners' seats are usaully installed in all the above layouts. All of these are quite easy to do.
If you search on here for "Aussie Blackhawks", there have been quite a few threads about building them with lots of great info.
I have plans to do one in the future too.
Good luck.
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