Any luck gentlemen,
I am having the same issue, although I am less competent at code than both of you. My situation was pretty similar.
HCP scripts appear to attempt to decrypt the keys and wallet file, but I get the same error message as Autoband86.
I was chatting with a couple of the original devs on Github about this who were not of very much help. I can offer up a bounty of 1BTC for a solution.
HCP the wallet cipher decryption did not work for me either

(I have all the same files as autoband and confirmed in the wallet.info file the wallet with the address with the bitcoin)
I think what I did is upgrade from version .14 to version .15 then I put in the password. Prior to testing if the password unlocked the wallet I transferred the coins to cold storage from the exchange (since everyone tells you to do that) now they might be in permanent cold storage
I was thinking about buying a keep key as they have a script to move private keys from Multibit classic to their device, as a hail mary as well...