We have adapted a standard reach-in layout # 9 kit to suit an enclosure width up to 3.05m/10ft to accommodate the tall boy unit that you already have.
As you will see this will make the long hang section quite a bit narrower. For a 9' 8" overall width the spacing will be (working left to right), 46" for the two tier hanging section for short garments, 24" for the central shelf stack and 46" for the long hang section but with the tall boy in position as shown the width of the long hanging rail will be reduced to 21".
Price to supply & deliver to a UK mainland address the layout as described above and shown in the image* will be GBP £170.00.
* Click on the image to enlarge view