Turf can be bought direct from a reputable turf grower. By doing so you are more likely to get fresh turf at a competitive price. Order your turf to arrive on the day you intend to lay it. Turf deteriorates when left rolled up!
Rake the next area to receive turf, using the same pressure and direction on the rake. When starting the next row, start half a turf in to stagger the joints to prevent long gaps if shrinking occurs. When the line is complete, move the planks on to it and carry on in this way until the lawn is complete.