Up to step 11 I would be ahead on Time.
Reinstall may also come inside the time it would take me to get to my nearest Apple Store. (I am on Fibre)
Step 13 would take me about a hour to get to.
Right this minute though I could not afford a new computer.
iMac 2.5Ghz 5i 2011 (Mavericks 10.9)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
Couple of iPhones and an iPad