Okay, got it together, tried it on. It fits! so I wove a bunch of 2×6’s to add a little to the length, my calculations telling me I did not have enough to make it 4×6. But it may take awhile to get this strip added as I am trying to make it look like I had planned this all along so am attaching it with a kind of lacy looking stitch. I hope. I added the slide stitch pattern to the front neck and also to this bottom trim to give it a bit of interest. I don’t remember if I said but the neckline I had planned proved to be too low for my  taste so I added another 6×6 there, as you can see.