Wouldn't it be faster just translating it regularly instead of waiting for MangaDex to come back online? It's been 3 months...
"Faster" or not, you expect a hypothetical translator (I personally haven't been doing this series anyway) to put the duplicate effort into translating a manga they know has already been done on another site?
I can see arguments for wanting to have the manga translated on Danbooru without gaps in between, and maybe (hopefully?) someone will indeed do that anyway, but speed isn't one of them.