I look forward to talking to you post trawler purchase. I have an express sedan boat and it surely does burn fuel, its one real genuine liability.
I grew up skipping 18 and 20 foot runabouts, my first one on some forgotten lake in Ontario and the second on the wonderful lakes of Madison, WI. From there I was in the Canadian Navy, learning on wooden minesweepers and destroyers. From there moving to Vancouver where I belonged to the "Jip Set" a sailing club. I took a number of courses through them. Then onto partial ownership of three boats, a 24 C&C, 26 Tanzer and finally a 27 Catalina. I used to belong to a group of drunken hospital administrators back in the mid 70's, we'd hop on one buddies 37 CT and go from Point Roberts to certain San Juan locations, always at night, frequently in challenging ocean conditions, arriving at our location at 2 in the morning, not exactly sober. We weren't really a threat to boating as I'm here to tell you that at night in the dark hours, there are zero pleasure boats on the water and just the occasional commercial ship.
Where this is all leading is that I have done my fair share of cruising at 4 to 8 knots. And do I look with envy at many of the trawlers, absolutely. But I have found I prefer cruising at roughly 20 knots. I want to get the boring first part of the journey quickly, then slow down to smell the kelp. Boats are kind of like horses, "you can make a fast horse go slow, but you can't make a slow horse go fast." I do slow down chugging along in our wonderful fjords up here in coastal British Columbia, but I do speed up to get to those wonderful fjords.
I have found speed to be addictive when cruising, I'm curious as to how your experience will pan out.