Make sure you want to sell all the goodies before you advertise them. The cost of replacing life jackets, downrigges, cooler, black box, etc.. may be much more than the value added to sale of your current boat and are items you may wish to have on your new boat.

Last fall I sold a 14' 1991 Crestliner with a 20" transom that was pretty deep with flat floors and storage seats, with a ez loader with buddies, 96 25hp long shafr merc manual start, 2 cannon ez trol downriggers, eagle sounder, 2 anchors, and a transom mount minkota, rod holders, fish on seats, fire extinguisher for 3500.00. Sold pretty quick so I may have been under priced a hair. I kept the PFDs and the deep cycle battery, all my nets and fishing gear and all my ropes and coolers that are now in use on my new boat. Save alot of time and I don't think those items would have added that much to the price I got for the boat.
Good luck with the new ride!