IKEA Kallso and Billy bookshelves assembly

Hi, Units listed below have now been delivered. Job list: 1. I need the 2 Kallso storage benches assembled in-situ in the hallway (2 * KALLSÖ storage bench Article no: 805.993.25 https://www.ikea.com/ie/en/p/kallsoe-storage-bench-grey-80599325/) 2. The hat rack also needs assembling but I also want this installed as well in the hallway which will mean securing into a drywall. 1 * KALLSÖ hat rack 605.993.26 https://www.ikea.com/ie/en/p/kallsoe-hat-rack-grey-60599326/ ! It will need to be able to hold 4 wet coats. AI recommends "Wood Screws: Two heavy-duty #10 or #12 wood screws (at least 2.5 inches / 65mm long) to bite deep into the wooden studs. Heavy-Duty Drywall Anchors (Backup): In case the mounting holes on the rack do not align perfectly with your stud spacing, you must hit at least one stud with a wood screw. For the remaining mounting holes that land on empty drywall, use metal toggle bolts or SnapSkru anchors instead of cheap plastic plugs. ! 3. BILLY Bookcases // Article no: 405.949.28 https://www.ikea.com/ie/en/p/billy-bookcase-blue-40594928/ 2 Billy bookcases (slim) to be assembled and lifted up 1 flight of stairs. Ideally Wednesday or Thursday this week 2nd or 3rd September, or Monday/Tuesday 7th and 8th September