I am upgrading and changing-out a lot of electronics on my troller. I have two sets of Echotec CTM 950 plotter and VT 950 to move to someone who could use them. The system that was installed when I bought the boat worked just fine - I can't say what the condition is of the stand-by units. I also have most of the C-Map cartridges to cover SE Alaska. I do not have an extra GPS antennae. The units and cartridges will be available to anyone who will take them off my hands "as is" - I am moving on to laptops and Nobeltec.
If you are interested give me a call at nine zero seven - three two one - three three two six. I am in Juneau and will mail them to you if you cover the postage.