(Development halted as my 'help' has not got back to me , if anyone wants to pick this up for me they are more them welcome, but for now the mesh replacer works as it should allowing you to interact with the cross. ) 

Presenting..... Interactable crosses!

You can use any cross provided they have the crucifix furniture in-front of them, pretty much most vacant crosses in the game but not all.

Come on, how long have you waited to be able to crucify yourself in fallout?