*The only thing I think I
must watch out for is over sanding, since the epoxy is much harder
than the pine and it ends up a bit proud. *In this case it won't
matter, but someday it might.

With the 5-minute epoxy there's a window of time after it has set up
firm during which you can slice it off with a sharp plane blade flush
with the surrounding wood. It's one of two uses I've found for the
Lee Valley flush-trimming plane, the other being to slice off
polyurethane glue squeeze out.

JP