A new member! Welcome to the forum.
Getting a handle on the tools you have would go a long way to narrow down what to suggest.
Can't set an old-style distributor on your daily driver without a timing light. Tools don't just make the job easier they make it possible.
The Saturn was in production for a long time, and made in a few different production versions. Printed on the circuit board will be a version number. Starts with the letters "EPT", followed by "3600", then two digits and a letter. EPT3600-10 is the oldest, and EPT3600-15 the newest.
Each version has slightly different circuits, parts and physical placement of things. Can't point out specific stuff unless you know which roadmap to follow.
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