Swap the front UVB for a daylight or plant grow bulb. Two uvb lights is too much, it can hurt the chams eyes.
Would the plant grow bulb be a better choice if I add the Pothos plant?
Remove the left "basking" bulb altogether, and put a larger watt(60-75) regular bulb on the right. You want to create a tempurature gradient from a top corner (highest) to the opposite bottom corner (lowest). This will make the most effecient use of the space inside the terrarium.
This was my plan after thinking things through. Which is why I posted in here. I was just going to add a dome fixture and then use a regular bulb in there.
You will also have a UVB gradient to take into account, but thats easiest as you just leave the rear bulb in.
When I put the other dome fixture on the tank I will actually be moving the fixture I have on the tank now from the back of the tank to the front of the tank. Should I still leave the rear bulb in?
If you focus on creating these gradients the chameleon will do what he is designed to do, and keep himself healthy.

I would recomend re-arranging the inside of the viv as well.
Instead of building from the center out, build from the walls in towards the middle. Leaving a somewhat empty area in the center. Then put horizantal climby things across, top to bottom, all over. I use sticks and vines from outside.
I also recomend putting in a small pothos plant.
It will hold lots of water droplets for him to drink, and help with humidity and give oxygen. They are cheap, grow fast, and you can just run the vines wherever you need them.
Where can one find one of these plants? The center is somewhat open right now however, hard to tell. What I have is a catch basin in the middle of the tank which catches the water from the dripper. Would I place the plant on the bottom? Do I need to do something to cover up the soil of the plant?
You will need to mist the viv 3 times a day, for a few minutes each time as well. This gives the chameleon drinking water, and keeps the humidity up.
I read not to mist very much to begin with when the Veiled is so young. Is this wrong? Should I be misting?
Those terrariums have glass bottoms, water is going to build up in there fast. Drilling drain holes in the bottom, or knocking the bottom out entirely and replacing it with something easier to drill holes in are your best options there.
Have you read about gutloading feeders?