Default Nexus 5 screen repair questions.

Anyone have any idea why a glass only option hasn't become available for the N5 yet? I know it took a while for other parts suppliers to come up with aftermarket digitizers for the N4, due to having the touch sensor overlay attached to it. But the N5 is nice enough not to be built that way, so if you break the glass, the touch screen still works.

Now I haven't seperated a lens yet, but I assume it's like an S3 or S4, and the touch imput is built onto the lcd panel. That should mean a relatively cheap glass only replacement option should be doable.

Can anyone correct me if I'm wrong? I've got a broken N5 and a working N5, but I've had too much fun testing roms on the broken one to want to do the seperation yet, so maybe the stack up prevents a glass only replacement. But I've delaminated N4s, G2s, S3s, and S4s, and replaced just glass/digitizers only, so I know the difficult process for doing it, and that it should be possible.