I have found through this phase of the build you can never have too many clamps. This pic is the clamps used to attach and glue the front spar nail strip (it is only ever glued) used to hold the leading edge on.
Once the front nail strips are on, then its time to get to nose ribs glued into place. I tried to get the centre section of the ribs themselves routed out. Got one done and it took forever….gave up and will put up with the incremental weight. Wont be much though.