No way. You need more than 10 minutes and way more than "basic" repair knowledge.
Iphones are by design extremely hard to repair.
Proprietary screws, glued in components (which needs to be removed and reapplied) and battery management components which need to be resoldered to the new battery so that the phone accepts it.
Its been a while since i have repaired an iphone but i doubt its gotten better.
If you can do it in 10 minutes I will gove you 10 bucks though.
You misrepresent the time, tools and knowledge needed to do those repairs.
"10 minutes and some basic repair knowledge" is still misleading even if you are a former sysadmin of 10 years.
Enjoy your overpriced coffee!