I don't have PGP, but I can send a password-protected zip file.
If you have a something.gramps XML file and not just the ~/.gramps
directory, then you should be able to set up a series of virtual
machines (probably easiest using Ubuntu Linux versions as guest
You may need to do this anyway with the ~/.gramps directory to get a
suitable environment to read the data with.
Are you willing / able to send an encrypted PGP copy of the data to
someone? Then they can see what you have and try to get some life from
'The unconsidered life is not worth living' - Socrates