Found my dads original 1971 duster!
No point beating yourself up as that’s not going to change the outcome. Having the work done a province away, let alone a city away, was super risky, regardless if you know the person/business or not. Super hard to see with your own eyes daily progress on the build (whether it be a car or house). Something goes wrong, it’s not until you visit a week or two or three later and, by then, it’s too late to redo what was done incorrectly w/o it costing a lot more. The churchy stuff is a red flag too as my BS meter would start twitching as soon as someone proactively brings that topic up.
On the positive side you have your car back. Onwards and upwards from here.