I wasn't willing to grind down the pliers or the other tools. It turns out that putting a scissor into a Charge XTi also won't be a simple modification since both the scissors and the large bit driver are designed to fit on the same side of the handle (applies to both handles).
I ended up settling on the Charge XTi for a couple of reasons
(1) Leatherman designed their bit kits so that the double ended bits are slotted/slotted and Phillips/Phillips instead of slotted/Phillips. This design makes two bit drivers more practical than one.
(2) I seldom carry the bit set with me, leaving me with only the bit that is currently residing in the Ti. With the Charge XTi, there are always two bits residing in the tool. This gives me more options.
The downside...I don't like the crimper taking up so much of the pliers jaws on the XTi. I'm not planning any modifications in the immediate future but I could try to replace the pliers on the XTi with the pliers from the Kick.