Scoring question

The ump could have called the runner out for abandoned effort on this play. But since he didn't it becomes an appeal out if, after overrunning or oversliding first base the runner does not immediately return to the base and he or the base is tagged.

OBR 7.08(j)

Agree with you fully.
What I am trying to figure out is exactly how a scorekeeper would record the play.

anyone help me out?

I would score it as follows:

SS gets an assist, runner reaches on E-3.

Runner then out, 3u (first baseman unassisted).

This is similar to what you would score if, for example, he had lined a one-hopper to RF for a clean single, but after rounding the bag the RF threw to first to get him out on his way back after his turn. In that instance you still award the base hit to show how he made it safely to first, then you score how the out was made. In your scenario, the E is how he reached first safely, so you still score that, then the out is made.

Your 1B might want the subsequent play to erase his E, but you'll have to disappoint him.