The probe is out of the question since at 17km it would be 8.5m long even at my scale! I found Golden Gate Bridge plans on skyscraper.com and I've started on them. I considered cutting round all the girders for all of 2 seconds - I would be drawing my pension before I finished that. The two supports will be 4" high giving a total length of around 0.75m. I'll be using spaceagent-9's Klingon bird of prey for the Bounty. I was thinking that I would need a couple of 5mm humpbacks until I remembered that George and Gracie weren't released until the Bounty crashed in the bay. So this will be a long, thin diorama of the HMS Bounty swooping under the central span of the Golden Gate Bridge. This is what I have so far:-