Chris,
Not sure if you need drop spindles, if you go with VBP a-arms they are adjustable in hieght. They will get you lower then you would ever need on the street and probably on the track. I went with the c3 spindles, steering knuckles, and hubs. They are stronger then the c2 and will bolt on with no mods as long as you have all 3.
Just as a note the rear spindle hubs on a c3 are stronger also and are interchangable with the c2's
Did you get any more pics of the beast this weekend?
I will be sending you a pm tonight.
Chuck