I may give wallet.dat to some members for their check.I hope I can recover wallet.dat with 319 btc
Don't be so crazy to give the file which you think have 319BTC.
Keep a copy of the file in a usb stick. Possibly in two usb stick. Then study yourself, use google, youtube. Give every chance to find the solution while you have the file safe. Talk to people who you think have speciality in this matter. It's good that you have created a topic here. Listen to the experts. I hope someone will be able to assist you.
Again, DO NOT GIVE THIS .DAT file to anyone.
Edit: I gone through google and was able to find some information for you. I hope this will help.