Timing belt and timing marks have been covered around million times on various web sites. I aligned the marks, installed the belt and rotated everything two crank rotations and checked again, that was it.
Belt is Toda belt for 16V engines.
Below: cam gear timing marks
Below: crank gear timing mark and a dimple on the oil pump
While the crank key points upwards, the first cylinder is at TDC and the small mark next to the second teeth should line up with the oil pump dimple.