It would probably be better to fly at around a G.
If whatever was powering the ship could throttle, then it might be possible to reduce or increase thrust to acclimate to the gravity of the destination.
While it will almost certainly happen eventually, RO and its related mods are a complex beast. It might be many months before it is officially compatible.
That would be fun.
I dunno, I think it would be unique to have a game with Kerbal-style progression centered around aircraft.
Plus I think it would be cool to have HarvesteR’s idea for a KSP prequel fulfilled.
I just went on a walk (for a bout an hour) and I regret not taking water. Canada just hit a new heat record (mostly here in BC) and it was something like 45 degrees centigrade. That’s a lot for Canada. Anyhow I got really nauseous and probably got dehydrated. Anyhow hope you get better