Sorry, turns out I paid $47 for it: TEKTON TRQ21101 1/4-Inch Drive Dual-Direction Click Torque Wrench (10-150 in.-lb./1.1-16.9 Nm) https://www.amazon.com/dp/B01M12284X/ref=cm_sw_r_cp_api_ri.0yb7WTEY68

You need to clean out the old thread sealant before installing new bolts. Keep the pan on there with a few bolts just so it stays in place for now, but order a new set of bolts and some thread chasers like these to finish the job.

You can't do this with a 100 ft-lb wrench, you'll need something like this for the initial torque. You can eyeball the torque angle.