Hey, new to forum but need help.

Had crank sensor go bad, replaced myself to save $. On 3.4l, behind harmonic balancer+pulley. Rented Pulley puller & installer tools from Autozone. Sucessfully removed pulley, replaced sensor, and began to use installer to press balancer back on. It basically has a threaded screw the same size as main/center pulley bolt and screws into hole while you toque down larger screw/bolt combo that fits over it. We'll i was 75-90% finished pressing balancer back on and it snapped off in hole, the screw/tap.:judge::bash:.

It has a center hollow shaft inside the screw that broke of so easy to tap/start threading with extractor tool. But heres my question.

Original quote to replace sensor was $250, so I thought I could do it for $30(price of sensor). Now that I'm fked, how much for them to use a broken bolt extractor bit to back it out and re-press on the balancer??? My original bolt is still intact, just the pulley installer tool screw/starter bolt is broken off in main hole of crank. Could I attempt this myself by buying a $5-15 extractor tap kit and drill it out? Or save the hass