Dave! That fitting on the outer tie rod. Is where it's all wiggly. Do I need to replace the outer?
It would sound that way, yes. I guess I am not sure what you mean by "that fitting". The outer tie rod just has the ball-in-socket joint where it attaches to the cast iron steering knuckle, and the other side is threaded and screws into the adjusting sleeve. At that location there is a kind of clamp that tightens the sleeve around the threaded portion of the tie rod.
If the ball-in-socket joint is wobbly or damaged, the outer tie rod needs to be replaced. If just the clamp is bad, you would need to purchase the threaded adjusting sleeve which comes with new clamps. Either way, you are going to have to get a front-end alignment to have the toe-in professionally set.
I know budget can certainly be an issue, but if budget is no issue, replace all the tie rods at the same time, inner and outer. These are all wear components and all will eventually go bad depending on age and vehicle use. You'd hate to just replace one tie rod, get an alignment, then have another tie rod require replacement in short order and make you have to get an alignment again.
The last part is strictly opinion, but hopefully this helps --
Dave