Hey Danny! Congrats on the upgrade. Many Sailfish owners have moved to the Marlin and been very happy with the extra space. Do you hang out on
www.greatgrady.com? I can't recall if I have seen you there. Here are some answers.
1.) Best supplier of components from a price and performance perspective?
I like Furuno. Some prefer Ray. It depends on your needs and tastes. Consumer Marine Electronics has very good prices. Many places will match your best price.
2.) Advantages of Raymarine or Furuno. I'm partial to the E120/80 combo as the features/price appear equivalent, the displays are larger on the Raymarine and I've only had Raymarine gear to this point with good success.
I hear the Ray has a better display although I love my Navnet. Furuno has the best radars, Garmin the plotters, and it may be debated between Ray and Furuno for sounder. I also like the numeric keypad on the Navnet. Furuno also has great customer service. Check out the Furuno RD30s regardless as they work on NMEA data.
3.) I was thinking of mounting the radar on a platform and installing a spotlight at the base for night use. Is this a good idea?
Most radars on a 300 go on the front of the hardtop. I recommend an array but a dome will work as well. I have a pic of mine if you PM your email address.
4.) Radar dome versus traditional horizontal?
Open array gives better target resolution. Above 4K all radars use an array.
5.) Chartplotter and sounder differences. These are the two functions that I will utilize most.
A person with Ray knowledge can better answer this. I don't use the plotter that much. The Furuno sounder is tops as they have won tons of NMEA awards.
6.) If able, provide required elements of the config so I'm better informed when shopping.
This depends but for Furuno you will need an ethernet if you have dual displays. I have a 10.4" in the lower flushmount plus 2 RD30s. Another 10.4 is in the upper box along with a Icom 502. Get the Standard Marine 5" ext speaker. It sounds much better then the cheaper models.
7.) The standard transducer is 600W, should I spring for the 1KW and what are the advantages.
I have a 600w on a transom mount. It marks great and is plenty for me since I rarely fish in water over 250 feet deep. The 1K will need to be mounted as a shoot thru to avoid sending bubbles in the engine path.