My first suggestion would be to go for the AB driver instead of just the A driver, as the AB has the leads for hooking up a potentiometer for dimming ability its $5 more plus add a 100k linear potentiometer for $1.50 or so, yes they both have IO pots internally but gives you more control if you want that. But if you plan to also potentially flower just do yourself the favor and get the 150w driver instead of the 100, strips can still run off the bigger one but gives you more play room to add more strips later on for more light, and really its only an extra $10 which when considering if you need to upgrade later its gonna cost you whatever a new driver will be.
Your voltage will be a bit under the lowest it can run if only going 6 strips, so just spend the extra $25 for another strip making 7 and the bigger driver and potentiometer, then you can buy the other 3-4 strips later when you need/want to
