Hi, did not read entire thread, but, is anyone still offering say 100 BTC to provide a polish translation?
Or perhaps less to simply get a text file or .po etc of strings to translate?

I would like to contribute a German translation.
Here is my fork with the added base locale: https://github.com/vlaube-de/bitcoin-central/
I haven't really started to extract any strings to yaml files yet, but would be happy to help.