Your scrafty alone can handle 3 of the E4 by itself (psychic/dark/ghost). Just let its ability moxie run its course (dont switch scrafty).
Swoobat shld handle marshal easily. just calm mind a few times (u need that move for swoobat doesnt have much offense) then psychic/airslash away.
pansear/swoobat/samurott can beat alder easily too.
just grind a bit more to get those levels up.