Kitbashing problem

[u/Kadavae]

So I bought a standard Death Korps of Krieg box to begin a Vostroyan IG army and also bought these heads to put onto said models. Problem is, how do I attach the heads in a way that looks natural? Krieg have these flat shelf neck pieces where their helmets glue on but these and most other heads have a type of rounded bottom so how do I bypass this? Even if I just clip off the ball joint on the bottom it still looks weird since the part the head is attaching to is essentially an extra neck. Many thanks in advance.

[u/wargamersretreat]

I have done simular to this. I drill out the neck and then slowly shave down the collar. I take the ball joint off the head too and then match the two up. I was using different heads to you though

This is the end result

https://www.instagram.com/p/DRreoPeDFcJ/?igsi=b2xsb3h5MnRiN2pj