As far as I know there are no internal ballasts unless it is some high end cage and the projectors would be even bigger to accomodate them. Not something you would want for the VFR.
You probably could have freed up some space by removing the lower reflector. Something you may want to consider as you don't want the projector touching the lens. Vibrations will cause scuffing of the projector and create hot spots in you beam pattern. That and the heat of the projector could potentially melt the lens over time also causing beam pattern distortions.
I know this means baking it again but you probably want to do this anyway because it will be easier to adjust the projectors with the lens off anway to make sure you have a nice horizontal spread when you test everything on the VFR.
Still, this is looking very nice and I give you massive kudos for doing HID the right way.
Here's a how-to for HID projector a guy did on another bike: http://www.theretrofitsource.com/pdf/trs_tech/Sportbike_Stage_III_Retrofit_Kit.pdf