Blast Off head swap?

I know I'm in the minority here, but I actually like Blast Off as a fighter plane. First, because it fits with the rest of the team of combat vehicles, and second, because he was actually MADE FROM a plane in the original cartoon, so it just makes more sense than suddenly turning into a shuttle.
That being said, I now have both the plane and shuttle versions, with the intent being to turn shuttle BO into an original character on an original combiner.
Though I like him better as a plane, and I don't even like the shuttle mold much as BO at all generally, I LOVE the head. Plane BO has a terrible head.
My intent was to swap their heads when shuttle BO came in, but then I found out that shuttle BO's neck ball joint is much smaller than plane BO's.
Is there any way to easily swap their heads with a little kitbashing which wouldn't risk ruining either or both figures? I really want the accurate head on plane BO, but not sure how to achieve it...
Any ideas?
That being said, I now have both the plane and shuttle versions, with the intent being to turn shuttle BO into an original character on an original combiner.
Though I like him better as a plane, and I don't even like the shuttle mold much as BO at all generally, I LOVE the head. Plane BO has a terrible head.
My intent was to swap their heads when shuttle BO came in, but then I found out that shuttle BO's neck ball joint is much smaller than plane BO's.
Is there any way to easily swap their heads with a little kitbashing which wouldn't risk ruining either or both figures? I really want the accurate head on plane BO, but not sure how to achieve it...
Any ideas?