Spoke to Pelicanparts. I'll have to measure the rotors to determine what the status is. There is a big lip when I feel them. Looks like they were not replaced for a very long time.
Do have all the items mentioned in the responses on to-do list. Going to be a fun time.
Was thinking about getting a code reader. Are there ones that work on different makes or are they made specific for each manufacturer. Durametric was what I had shortlisted. Seems to have what I need.
Will take the advice on the O2 sensors.
Thanks for the support guys. Appreciate it.