Thanks Thomas.
That extra zero in the scale makes all the difference....what did I let myself in for?
It's been an educational evening...
1) I learned my phone is better for extreme close-ups than my camera at "macro" setting
2) I learned those tie-downs were actually the easy part :-(
They actually came out OK after sanding down. Once painted it'll be even less obvious that they are not all flush and level:

Then I started on the side rails, ladders etc..... OMG! They are so bloody fragile. There's nothing in the photo to put them in scale but I estimate them at under 2mm wide. And so light: impossible to keep straight... and trying to bend the parts for that ladder!!!! I can see this project getting shelved soon.

