The ff was 299 and the mounting stuff was another 100. It was a bit pricy for the ram and yak attack mounts and brackets but I did not wish to fabricate myself and I was very pleased at how quickly I was able to put this all together it literally to maybe 30 min. and I was done. I already had the batt but you can get them from academy in the deer feeder section for not much.
Also lowrance has a deal going right now you get a free lake insight card with purchase of the elite 4 hdi that's a 99$ value which tipped the scales for me since I was already in the market. You could also go with the dsi and 2d sonar only for 199 or even a bit cheaper 2d only for like 149 I believe. At the end of the day I decided I did not want to regret not purchasing the GPS option and I've been out twice both times it has paid off by helping me locate creek channels or points more easily.
I swear I am not paid by lowrance but first time out I caught five bass at a lake I had been getting skunked at lets just say I am pretty satisfied with the investment so far. The dsi and everything else has exceeded my expectations. Hope to get out more soon and do a good report on the unit.