I was thinking 767 because I could only see 4 spoilers (which, I think - but may be wrong! - is different to the 5 on a 777). But it doesn’t make sense for a FTer to be sat other than in a bulkhead/exit row, and I now think I can see 5 spoilers.
So I’m going to have one more guess...21k in WTP on a 777-200.