There is much posted online here. I teach sonar courses and I can cover more ground with you on the phone faster than typing back and forth. PM me a number and I am happy to call and discuss your needs and options.
Capt. Craig Copeland
Licensed by the US Coast Guard
2013 Nautic Star 2110 Shallow Bay Boat
Humminbird HELIX 12 CHIRP MEGA SI GPS G2N
Nautic Star Boats Pro Staff (nauticstarboats.com)
Redneck Fish'n Jigs Pro Staff (redneckfishn.com)