@cobbr2 I've made a couple of JSON object -> LookML generators for specific use cases before, and I think the approach should be generalizable. I just use a templating language (of which there are dozens, I like DoT).
Here are some in-browser implementations to give you an idea of what I mean:
I've started one parse->transform->generate tool in Node too, but haven't finished it yet.
If all you'd like to do is change something highly-localized like explore names, maybe a simple regex search&replace would be sufficient?