The plant is looking very nice! Have you settled on a method of hydroponics? I don't want to push you towards one or another in particular. If you want to keep it as cheap as possible I would go with DWC, in other words get a rubbermaid container, cut a hole for your plants pot in the top, put a couple air stones in the container underneath, hook up an air pump, add some PH'd water, nutrients according to your plants needs and turn on the air pump.
A couple important things here is make sure to get a container that light won't get to the water, or just cover the container in something so light doesn't get in. Next important thing is make sure you have an easy way to add / remove / test your water. I am going to cut another little hole in the top of mine that I can cover when not in use for this reason. Another big thing with this sort of system is your water can't get too hot! Cheap way to keep the temperature down is toss in frozen water bottles, if you got coin you can get an aquarium chiller. I just use ice, I believe optimal temperature of a hydro res is around 68F