Can someone just confirm I'm not making a stupid mistake before I place orders for these items?

Bike is a Carbona CFR-696 (branded from Planet-X as "On-One Free Ranger"), which takes a threaded BB. It's running mechanical SRAM Force 1x11. Any stupid mistakes I'm making (maybe related to chainline which I know nothing about)?

I plan to buy:

• Magene P515
• Any BSA BB that takes 24mm spindle (e.g. Shimano Ultegra)
• Any 110BCD narrow-wide ring with asymmetric bolt holes (e.g. https://www.amazon.com/DJC-Chainring-110bcd-Speed-Tiagra/dp/B0BLW3C66N)
• A set of chainring bolts and nuts (e.g. https://www.amazon.com/TruVativ-Steel-Chainring-Bolt-Black/dp/B001GSQO3W)

Just starting my 168 build with Di2 - am I supposed to route the front derailleur wire through the cable stop, or through the hole that comes with a rubber cap in it directly below the derailleur mount? If it isn't for Di2, what is that hole for?