I've often told newbies to wait 'til you're ready for the first flight to rivet the top forward skin on
You'll be amazed at how many times you'll be in there with wiring and such.
You can cleco everything together, including the camlok strip with camloks. Since the cowl extends further back than the camloks and needs to be trimmed, they'll be in the way then and if you're absolutely sure that you're done with installing all pitot/static lines and all wiring for your instruments, then go ahead and rivet the top skin on.
It's a bit of a fight to make that skin bend around to the upper longerons but screw-type clecos work well in that they exert a whole lot more pressure, along with ratcheting straps around and under the fuselage to help.
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15
Air Tractor 402 PT-6-20
EAA Flight Advisor/CFI/Tech Counselor
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!