Ok, got it all lined up (checked that the VS was vertical, by measuring fromVS tip to HS tips). And was ready to drill the rear VS spar to the aft bulkhead and realized I hadn't installed the rear elevator stop (that which I drill into). Take it all back apart.
Mounted the elevator stop and got it bolted and riveted into place and put everything back together and plumbed the VS to the HS. Now, ready to drill it and bolt the rear spar to the elevator stop. Pic2 show the bolts drilled through.