Whitehall beach on the Choptank is pretty popular.
https://www.google.com/maps/place/38%C2%B034'08.8%22N+76%C2%B000'52.9%22W/@38.569102,-76.0152472,220m/data=!3m2!1e3!4b1!4m5!3m4!1s0x0:0x0!8m2!3d38.569102!4d-76.0147
You must approach at high tide for more then 4ft of water, or follow someone in...
Have a look at the Cruisers Yachts 3672, 370, or 390. All based on the same hull. 390 has a hard top and IPS. Forward stateroom has a door, aft is a pullout on the same level of the rest of the boat. No cave to crawl into.
Propcoat is the same as barnacle barrier, which is the same as Rust-Oleum Cold Galvanizing Compound
https://www.amazon.com/Rust-Oleum-7585838-Professional-Galvanizing-Compound/dp/B00106H68W
I have used the Rust-Oleum for 3 years now. I did one side in Barnacle barrier and one in the cheap...
We use the ubiquiti bullet
https://www.amazon.com/Ubiquiti-Bullet-M2-HP-Wireless
Antenna
https://www.amazon.com/Marine-WiFi-11dBi-2-4GHz-cable
Adapter
https://www.amazon.com/gp/product/B00IE7NVUW
It will keep the radio inside the vessel and dry. The antenna fits on a standard 1-14 thread...
It depends on the type of problem. I have a good fix for the ones with faded displays and intermittent digits. If the entire display is disappearing, there is not much that can be done. There are 2 main issues with these units. The older ones had the ribbon connector for the LCD soldered...
This is about half the price of the sealand filter BTW.
https://www.amazon.com/AirForce-Holding-Tank-Vent-Filter/dp/B00H7HO97E/ref=sr_1_1?ie=UTF8&qid=1487111689&sr=8-1&keywords=waste+tank+filter
Direct fit, immediate results
Edited for formatting and to add that we are getting ready to start...