Technical fiat doblo 1.3 multijet bodged up dpf and turbo failure,

[handsomebeast]

hi guys new here so be nice please, just bought a doblo 1.3 sx multijet 90hp van 104k miles, from facebook marketplace, when i bought it the turbo had a loud whine that emerged when the guy started it during viewing, so i knocked the price down and took a chance on it, had my mechanic take off the turbo which had a broken shaft which is where the whine came from, the whining stopped before i got it home btw, but on inspection it had either seized or something else happend but anyway ive ordered a brand new turbo, and ther mechanic said the dpf has been drilled through to unblock it and welded back up, and that it has as a result of this, more than likely been remapped, the question im asking is does my engine have a dpf and a cat, or just a dpf, as looking for a replacement is a pain in the scrotum with all the available types, and is there a diagram or part list for the dpf or cat to make sure i replace it with a good part, and as i want to get the dpf replace id like to undo the remap because i just dont trust them at all, what software cables ect would i need and how would i go about that, thanks in advance