Man, what a sad turn of events. That was a really sharp looking Seafari!
Back in 1989 our family suffered a total-loss house fire. Our much-loved Seafari 20 was on a trailer right next to the structure where the fire started. Luckily the boat did not ignite. The firefighters actually pulled the walls down a few feet from the boat, and a chimney had partially collapsed in the vicinity IIRC. Fortunately it survived with only two broken windows, some of the deck charred-brown like a marshmallow. To this day you can still see the heat bubbles in the original rub rails along the starboard side, and over the years cracks have developed on the top deck on that side from the heat exposure, which I plan to address this year. I'll have to dig up some pictures of the aftermath from '89...
Anyway, so sorry to hear about your boat; Best of luck finding a replacement!