Welcome and potential congrats here too. I commanded a 205-foot Navy salvage tug with 96,000 gallon diesel capacity. Just like your trawler, we had a single Shaples centrifugal fuel filter through which we transferred fuel from storage to days tanks to feed our four hungry sixteen cylinder Cat D399s and generators. We had a second centrifugal filter for lube oil, and it was shifted to a different D399 daily. Unfortunately, these filters could not be cannibalized for parts for each other as we found to our dismay when we lost the fuel filter way down around the equator. We just had to gut it out until we were done with our Trust Territories of the Pacific patrol and could get to Guam for a fix. When I had four tanks on my GB42, I ran my fuel polishing system of the two forward tanks before trip and ran the twin engines from those tanks using the polisher to push fuel to the forward tanks from the larger aft tanks every other day or so. Size and configuration makes that impossible on the Pilot, but it uses fuel so rapidly that a polisher is really not needed.