Oh Dan Dan Dan... you have NO idea how disappointed I was to find out the Eduard gun was waaaayyyy too big. The detail on it is simply beautiful.
I had thought of the same thing as you... to kitbash. Unfortunately, since the Eduard gun is roughly 22% too big, I doubt there are any parts that are useful to use on the RCSubs gun.
On another note, I heard back from Eduard support:
"Thanks for letting us know about this issue and for elaborating the details for us.
I've already passed your message to our Brassin development department. Our guys will look into this and decide, whether or not there's a mistake to fix.
If we want/need your further support, we'll get in touch with you.
Thanks again for your support!
Libor Havranek"
Uhmmmm...... I am not sure I like the choice of words....... "whether or not there's a mistake to fix."
There IS a mistake... a "22% too big" mistake...
I hope that they take responsibility for the error, so that they can move on and re-issue the kit, properly sized.
Again, I am calling on the good people here (who know their stuff) to lodge a complaint with Eduard... so they don't think I'm just some lone crackpot whistleblower type.