Sequental IO and pointers

pastebin snippet at http://pastebin.com/439265

I've posted before in this group and I would just like to say thanks
for all the help im getting :) .. dont want to clutter up posts with
replies of gratitude so... ah well, another question then :)

Can I actually export my Storage/Node types as defined in my code
snippet? Or would I have to add another type which is used to export
only the item, len and count variables and then when importing my data
I feed this in to my variable of type Storage?

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