My original target was 8 or 9I. I was stuck at a 10I Biggie-brick wall for a while. The core to this solution is the length 1 arm making a 3 atom stick. I unfortunately needed two pivots to fix geometry issues. I couldn't find a better layout, but I would not be surprised if someone else has 8I.

Still not a huge fan of the area secondary, but it's not as painful when the wastechain is only 11 monomers long.