Eightbore - have you seen 12 ga skeeters with factory straight grips?

I see several .410 skeeters with factory straight grips for sale on the internet, but none in 12ga. If straight grips were available on 12ga skeeters, are the receivers similar enough that a skeeter straight grip buttstock and long tang trigger guard would fit on a super trap reciever, after some minor fitting by a gunsmith?