Billy. To change a crank sensor you untension the two belts and put the car in the air, pull off the passenger tire and splash shield. Remove crank bolt and using a balancer puller remove balancer. Then the plastic shield is popped off (behind HB) and two 13mm bolts hold the sensor on. The sensor costs ~$30 at any parts store. The job itself takes any competent mechanic under 20 minutes.
The cam sensor is one 10mm bolt, wiggle old out and new in. Probably takes 20 minutes because it's all braille.
The ICM is swapped out with a 5.5mm socket and a 7mm socket. 10 minutes if you drink a beer while doing it.
Most of us have extra ignition module wiring hanging around. Want me to ship you one? $10.. that covers $5 for priority shipping and $5 for the time to drop it off
Now..if you actually think half of the stuff they told you needs to be done, smack yourself in the forehead so hard that you wake up next week. The exhaust shop was taking you badly. This place is even worse and I don't see mention of vasoline. If you get any of this work done by them, then you better have gotten lube otherwise your rear will hurt for months to come.
You are part of a forum that might have members close to you. Ask around, find out who can help you. Members help members all the time. And it doesn't cost thousands of dollars.
Phew..those prices etc really had me riled up. :th_angry2: