Buy Excavator

I am into Mining and Quarry Business of Granite Stone.
We blast the stone from mines and then crush it.I am in requirement for Tracked Excavators.
The model series i require is 320 or more of Cat i.e 30 Tonne and above.
Other similar to this such as Volvo, Komatsu can be considered.
The product should not be very old, must be in running condition and like new.
Anyone interested in selling the same can contact me.