Please Help with Price on Lowrance

Hi Guys! I am thinking about putting on sale my Lowrance Elite-4 HDI Sonnar + Chartplotter. But I cannot come up with price  . The main unit is completely new, never turned on, fully covered with manufacturer  warranty. The power cable is new too. The transducer is used. Transducer with down imaging. I also have all parts that were in box (screws, mounts, etc. some new, some used). I also have brand new, never used Navionics maps on SD card. I can sell them with device or separately. Need any suggestions on price. Thank you in advance! Eugene.

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