B's plan A

B's Focus has a knackered DPF. I bought one on ebay and was going to fit it today but I can't undo the two sensor nuts on the unit and gave up and put it all back together in fear of rounding off the nuts and then running out of time. I'll have to try plan B... when we've decided what plan B is.
They look so complicated these days. I remember my first car, a Cortina Mk1, was basically just a rocker box surrounded by fresh air.