I've seen some good buys on ebay. Lowrance changed their ice unit line up this year so the X67c package might be going on clearance.
I have an OLD vexilar 50 single color that I bought on ebay. It needs a battery, charger, power cable and transducer. Vexilar will make a power cable for it for $20 and custom ice transducer for $80. You would have to figure out a base and battery for it. You can have it but there is no guarantee it works. I have no idea if it does.
You could spend $200 getting it ready for ice fishing or spend $280 on a new Fl-8.
I intended to fit it for ice fishing but never got to it. Let me know if you want it. email@example.com