Please go easy on me this is my first post and I am still trying to chose what pano system to go for...

I am thinking of getting a Ninja 3 for now, I use D200's with various lenses (Nikon 17-55 2.8, Nikon 75-300 etc.) but plan to use a Sigma 10-20 for the shots, however my main question is regarding the D200 fitted with an MB-D200 pack.

If I see:-
Sigma 10-20mm Set to 10mm
NN3 - 53mm NN3 w/CP - 63mm

Do I just add the depth of my MB-D200 onto the 98mm?
Is the unit big enough for this?

Hope I have made sense with this description!

Thank you,