OP - have you try the TILT function on the seats? On my manual seats its in the right front(see note bellow! It's the LF!) corner of the seat (near where the seat meets the center console). It will make the seat pivot - which might give you some more extra headroom.
G.L.
Dackel
NOTE: Today I check my driver's seat - the tilt function is at the
LEFT front corner of the seat, almost under your left leg's knee area.
