I didn't bother with lengthening the train for this one as the focus was to get a better fit - I think this was achieved.
Oh yes and I eliminated the tie/bow at the back. So my pleats are stitched in at the top edge and at the side seams. Appears to work fine this way although I'm not sure whether my silk dupion for the real dress would work well.
So here's what I have:
P.S. bear with me with the fabric I used for the toiles... I had to mix and match at times (eg the train in altered toile #1) a couple of times...