where to start?

[trounce]

The space issue is really only a problem whilst its being built, I have a galvanised shed in the garden that's 10' x 12' so as long as it fits in there I'll be ok. My main concern was actually moving it because I'll be building it in a garage that I rent next to my house.
I've designed the bed so that a large chunk of the inner supports can be unbolted and removed to make it much lighter when moving it, though I'm not sure if all these supports are really needed.

The outer grey sections will be welded together and the inner sections will be bolted to the frame, though I may get rid of the centre bolts and just have a fully welded cross shape in each inner section.
Outer is 60 x 60 x 3 and the inner pieces are 60 x 30 x 3.
This is my first attempt using google sketch up and I'm pretty chuffed with the outcome :tup:

If you could let me know if it looks ok or if its overkill with all the inner sections?
Cheers
Neill