So my car is back together finally.

The car idled for 15 minutes while topping the fluids. Took the car for a little spin to the end of my block at ~2k RPMs and then it shut off. It seems that my car's ECU isn't receiving any RPM signal now according to my SAFC.

I want to tow my car to a shop that isn't going to give me a lot of shit about what the problem is and just fix it.

Any recommendations?