Small CP to work with. Is Happ 1-1/2" TB worth it?

[equlizer]

I want to get this right the 2nd time (re doing the control panel).  Right now i have a 2 player setup with 6 buttons per player (and its fairly cramped) but i wish to change it.  I want a 1 player setup with 2 joysticks, 6 buttons (for first joystick) a push pull spinner and a trackball.  The 3" i have now will def not fit with spinner in there too.  I was thinking about biting the bullet and getting the happ 1 1/2" trackball (it would all fit nicely)  Or......use the 3" and make a box for it and have it mounted on the front of my bartop and have it removable.  My 1 player button, quarter button and option buttons will be in the front of the CP so i dont have to worry about those.

What do you guys think?  I have a few days to decide.

[equlizer]

Just thought about the trackball mounted in the front of the system would get in the way so hopefully i can mount it up front in the middle and still have room for the trackball on the Control panel on the right.