I do appreciate this kind of trivia cpltom. I admit that whatever I might have read in the past about the battle for Peleliu has at least temporarily disappeared from my memory.... did James Michener write about it in 'Tales of the South Pacific'? But then it could have been quite ficticious, of course.
Incidentally, about a month ago or so I picked up a 5-disk DVD set entitled: 'Crusade In The Pacific'. To my great shame I haven't yet watched a single disk and of course have no idea if there's gonna be any footage about that battle. But then there's always Google.
As terrible as all those battles - and for that matter all wars were, historically I'm most drawn to the historical aspects of the WWII Pacific Theatre and the Vietnam War.
Regarding Bi-Planes in FS: I'm still running fs9 and picked up a very decent Sopwith Camel - I'd have no qualms to try it out in FSX considering that there aren't many (if any) gauges to be concerned about. I've always enjoyed flying the 'Camel' (also in other sims) with the narrow landing gear, no tail wheel and if you touch down a bit too fast and apply the brakes, you'll bury your prop in the dirt.
I just thought of a real beauty you might want to try in FSX though it was made for fs9:
https://flyawaysimulation.com/downloads/files/2922/fs2004-albatross-diii/
As with the Camel, I'd suggest you just install the aircraft itself, don't worry about the gauges at this stage, hand fly it for a bit and if it doesn't behave in FSX, it'll be easy to delete. (BTW, the effects, if there are any, don't usually cause any problems).
This Albatross, despite the very few downloads it enjoyed, is an absolute ripper -- reminiscent of the barn storming days. If you can get it to work to your satisfaction in FSX, you'll even forget about the sharks 😀