my current ride is working good - any good tips for Dodge owners?

[bedlamite]

So, A compression test would tell me if the timing chain needs replacing?

No, they are separate. Compression test and/or leakdown test will give you an idea what kind of shape your pistons, rings, and valves are in. Either test can indicate whether or not much more expensive engine work is on the horizon, and it may or may not be worth putting small parts into.

The compression gauge can be had for $20: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=compression+test+gauge
Leakdown gauge is a little more: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=leakdown+test+gauge