A couple of points about the video:
He mentions to turn the engine to No.1 at TDC but most of the guys here actually rotate it so that No. 4 cyl is at TDC with the camshaft lobes at 2 o'clock (exhaust) and 10 o'clock (inlet).
One other point, he says to install the timing chain tensioner deactivated, but again the recommendation is to install it activated (which does require more effort but should be much easier with the engine out) that way you can be sure it's going to function correctly.