Korean War helo pilots wore standard fatigues...

Sometimes they wore an A-2 leather flight jacket as well...

They usually wore either no headgear or the Ridgeway hat (blocked baseball-style hat as on the pilot in his Bell 47 above) with headphones. Helmets were rarely worn.
A couple options. You could use any standing figure in fatigues. Maybe one with a pistol belt and either a 45 or a 38 on his side.
Another option is with the A-2 flying jacket. This would distinguish him more as a pilot. You could use the standing figures from the below set and paint their jackets to look like brown leather. I think the jackets are close enough; add pockets and swap out the head for one w/a Ridgeway hat and add some sunglasses - you would be good.
