These videos answer all your questions. I could not have built without them. I have the fuselage , wing, and finishing set for the Cruzer. Also have installing your O-200.  These p[rices are about 1/2 price of new.

(4) videos on building the Fuselage,(2) videos on building the wings,(2) videos for finishing, and (1) video on electrical wiring.  All 9 for $110.

(2) videos on installing an O-200 in your Zenith, (1) video on computer tablets in your homebuilt, and (1) video on alternative engines to the 912. Stein air electrical tools and components. All 5 for $40

All 14 for $150, you pay shipping. PayPal only.Good luck with your build. See my other ad for a box of Zenith goodies.  Text me 404-641-4273.  Matt Miller