I'd say maybe the first few posts to try and keep everything together, you can also hold a few posts after the first post by posting the word "Reserved", also, the 30 image per post limit won't get exceeded if pics are posted in spoilers (so posts could be much longer that way
)
So like:
New figure name
by blahblahblah company
RRP
Limited/not limited (if limited, limited to what)
Preorder information
Etc
then images below in a spoiler xx