He installed the c-80, the sounder & transducer, raystar gps module, radio and 8' antena. he is an authorized raymarine dealer and installer. the way that he worked it with me was billing at an hourly rate. I can dig up my reciepts and get back to you.
i was very happy w/ the job he did. i have e-mailed in the past for parts or info and he has always gotten back to me and helped me out.
I live about 40 minutes from him and if i remember right he charged me a 1/2 hour time for travel. His phone # and email address is on his web site.
e mail Bluefrontier@comcast.net
Phone: 978-360-8137 his name is Bill