You can probably still take advantage of Bluetooth. Most hearing aids these days come with a "telecoil" setting. See if yours do. As I understand it, very few HAs these days (any?) have Bluetooth directly embedded in them because of the battery drain issues. (The battery dilemma seems to be what holds back real breakthrough in HA technology.) If you have moderate to severe hearing loss, as I do, you probably couldn't get BT aids that would work for you.

The key is some sort of neckloop. Hearing aid manufacturers make them, but I have one from a company called ClearSounds (a "Quattro"). It will pair with the Bluetooth on my iPhone, and then the loop "beams" it through the telecoil function into my HAs. Excellent sound. A similar, older technology uses a cord to plug the neckloop into the audio jack on a phone; it also uses the loop to beam into my hearing aids. The older one uses triple A batteries, the newer Bluetooth one has a charge life of maybe four hours.

(BTW, a telecoil will also enable you to take advantage of hearing loop systems in buildings -- something growing too slowly in this country, but quite common in the UK. My church has one. If someone speaks into a microphone at the pulpit, the voice gets beamed to my ears. Given the building's acoustics, I can hear better than "normal" people.)

Going back to the original post: a VHF wouldn't have to be Bluetooth-enabled itself if it had an audio jack. You could plug in a small (maybe 1" x 2") transmitter that would beam to your neckloop, which would beam to your HAs. You would have freedom of movement. And if you have the ability to control the programs on your HAs, you could set the telecoil on just one of them to pick up both the VHF and ambient sound.......which I think would be safest. (I bought a TaoTronics transmitter for approx $25 from Amazon, which I use to beam sound to my Quattro loop while watching video on my first gen Kindle Fire, which is not BT-enabled.)

There are advantages to HAs. When we're motoring, I set the program to "Noise" -- what people usually use suppress background noise in restaurants -- because it nicely dulls the engine sound!

Ben Ellison, who writes the excellent Panbo blog, has written several times about hearing aid compatibility on boats.....a search of his posts might be useful.

(BTW: depending upon your state, you might have 90 days to return hearing aids.)