If you end up ordering off of Alibaba, I would stick to one of the more well known suppliers (e.g. Kingbrite, Meijiu or a handful of others). On the linked light, I see no mention of the diodes used. An efficacy figure of 2.3 μmol/J suggests they are using last generation or inferior quality diodes.
Personally I would go with the QB 96. At least 4 of them like Rocket said for decent spread. And maybe add another 2 (or more if you want) down the line when you can afford it. Maybe look into the XLG-240-H-AB drivers (somewhat less expensive than HLG series drivers) with the QB 96 wired in parallel. You could buy 3 drivers so you have 720 watts of power potential. Start with 2 drivers and add the 3rd when you can afford the other QB96s.
How much is shipping to you for the QB96? If ordering direct from HLG, RIU10 or DIY10 will get you 10% off your order.