As of right now I am meeting with a Representative of Forest city Gear on Wenesday to talk with him about hopefully making a custom Planetary transmission that will integrate 2 cims with an empty spot for the big one if we end up with weight for it.
The necessity of a 3 speed also ends up on the robots final COG as this year our 2nd gear with dewalts was 10fps which with the sudden turns of a swerve drive can lead to some scary tipping even with a good COG we never tipped over however.
So if next year we end up really short i may go with 2 speeds like 4 and 10.
Which in that situation I would most likely use a dewalt and only use 2 speeds set where i want them.
edit:
http://www.chiefdelphi.com/media/photos/26104
Thats the closet thing i've been looking at but im attempting to avoid the dewalt