Recreating bcmdl-files?

Hey Guys,

I just extracted a model from a bcmdl and edited it.
Now I want to import this obj to bcmdl but there's no tool which is able to do this.
EFE can't reinsert models...

So I thought I could create a bcres file and convert/compile it to bcmdl?
Or is there a way to replace the model inside of the bcmdl with a edited one ?
Anyone a idea how I could do this?