I have the following -

x68 IceMachine unit barely used. Like new. Has GPS, you can make trails and leave waypoints. Doesn't take lake chips.
The transducer for it.
The power cord for it. Attachs to the battery.
A Icefishing CD featuring the unit.
The main bracket for it. That attachs to the unit. You could easly mount this on your boat also.

I took the following and converted my 522 into a IceMachine
The battery.
The outside carrying case.
The bottom circle barcket that fits into the carrying case.

So you would need to buy or find -
1- battery
2- build a homemade bracket and case.

Retails over $400+

First $225 takes it.