Definitely don’t check fuel or you will be losing all your baggage. Lighters, matches, lithium ion batteries, and power banks are items that are typically brought on a hunt that are allowed in carry on but not checked. Bug dope in checked bag; even if it’s pump style. If I have room in my gun case, I’ll lock small optics in there. Don’t put optics (or anything expensive like inreach, solar panel) in an unlocked and/or soft bag - gun case or carry on. If I’m flying other than AK Airlines (Ravn, PennAir, Grant, etc.) I’ll throw a sidearm in my checked bag to require it by law to be on the flight with me. That seems excessive, but I’ve spent 5 years flying several times a month basically everywhere in AK and it’s about 50/50 to get your bags on them smaller airlines.