If you lay under the drivers side of the jeep, and looking from rear towards the front of the Jeep, the crank position sensor is at the 11 o'clock position on the bellhousing. It is held in with two small bolts. If I recall correct you need a 10mm socket for them.
As for the torx bolts you will probably need to drill them out and rethread the holes.
84 CJ7 Northstar V8
91 YJ Renegade, I have owned it since it was new.
97 TJ daily driver.
Jeeps that I am currently parting out;
1994 Jeep YJ 4cyl 5spd
1992 Jeep YJ 4cyl 5spd