The important thing to practice is the change from chord to chord with your left hand - probably think organ rather than piano, because three note left hand on pianos tend to only work higher up - lower down they sound muddy and heavy. So whatever fingering you pick needs to have fingers spare to move to the next chord, so (using thumb as finger one on the left hand) your first chord much be 1-3-5 and then your next chord is 1-2-4. Don't fall into the habit of only playing one position, then moving the entire thing - think common notes in the chords, and then use the spare fingers for the next chord.