The original, factory job was to fit part number NTC2110 - which was a squareish under tank seat.
This is the picture from the manual -
This tank is no longer made / stocked through, so im not sure its an option.
Im wondering if the series 2/3 military tank, stc613, would fit?
This -
There is also a thread here -
http://forums.lr4x4.com/index.php?showtopic=76901
Where someone has modded a D90 tank to fit. The tank has needed to be altered, and a bracket made up.
His end result seemed pretty good, but was much more work. Photos (which you may need to be signed in to see?) -
Anyhow, my main question was -
Will the s2/3 military tank fit in a 110 CSW?
This is the picture from the manual -

This tank is no longer made / stocked through, so im not sure its an option.
Im wondering if the series 2/3 military tank, stc613, would fit?
This -

There is also a thread here -
http://forums.lr4x4.com/index.php?showtopic=76901
Where someone has modded a D90 tank to fit. The tank has needed to be altered, and a bracket made up.
His end result seemed pretty good, but was much more work. Photos (which you may need to be signed in to see?) -


Anyhow, my main question was -
Will the s2/3 military tank fit in a 110 CSW?