Not sure what can you see in a decrypted wallet file, for me it is just a bunch of Bitcoin addresses and some keys. If this works, I can simply send you the texts, then only remove the important private key out of the text, no need of encryption.
I am not a pro in this area so forgive me for my ignorance.
Yes you can do that if you want, but then I'm probably quite limited in what I can help with...