This is not an instructional video. This is a personal video diary and should not be considered as training.
Manufacturer manuals are typically available online and will provide critical information such as torque values and such.
The Van's RV-12 maintenance guide is available here:
http://vansaircraft.com/pdf/revisions/RV-12/RV-12_MM.pdf
It refers heavily to the RV-12 Kit Assembly Manual (KAI) which can be purchased as PDFs from Van's for about $10.
You really need both.