Your right but bro "twin cam 16" means twin cam engine having16 valve "4a or 4e series" while ae80 came with 8 valve engine and ee80 with 12 valve
" AE81 - FWD, 3A-LU engine, 4-door sedan (DX, GL, SE), 5-door liftback (SX), 3/5-door hatchback (Corolla FX)"
I copied it form Wikipedia.
But still I can be wrong.
And as you said that interior is brown in colour then it's SE saloon.
What the owner demand?