If you go with JDs (I wouldn't, but that's a whole other story).
Your going to want a few of them. They are 60° beams.
Your cage looks great, do you have a video of the rain system? I want to make a rain system that looks like really raining, but came up short on ideas. Mostly due to extreme water usage, mine is for a Parsons, so I need it to run for a long time.
If money is no issue, at least upfront cost, I got some better lighting Ideas for ya. The JDs are nice, from a upfront cost pov, but their L/W is worse than T5s, just something to chew on. You can get double the L/W for a tad more money. You can also retain the CRI, and have a similar form factor in the DIY sector.
To put it in perspective, your getting 3500lumens for 40ws on that JD, I can get you 7400 lumens, for 38 real watts LEDs (about 45ws from the wall). The upfront cost will be around double though, it will also take some DIYing. I would still add more than 1, depending on what Reflectors you use and how you want cage par laid out.
If you want a super plant growing fixture. Keep an eye out for my LED fixture build, I am going to document it. Your looking at about 350 each, without a controller (of which depends how many fixtures your planning to run, for just 1, it would be 100-200, if your doing many, it changes, I'll cover all that). 200ws from the wall, all lights full blast, and about 35,000 lumens, which comes close to what these animals experience in the wild. However, you really won't run them all full blast, as there is colors for correct photosynthesis, you'll likely be pushing 20-25k lux max at cage top (shade outdoors) per fixture.
To give you an idea of where to start, if you don't want to wait for my thread. Or dont just want a straight suggestion. The JDs run a low cost, low effiency cob, at it's max power. This is done to save money, on upfront cost, to mass market it.
You will be doing the opposite, you will be running expensive high output cobs, and running them at low power, which drastically improves their effeincy.
I have spent alot of time in the last two months on shady forums learning all about this stuff

. Those guys make money from their lighting working well for plants, and effeincy = Profit

. That's where the real lighting gurus are.