hopefully you have a decent under-structure to that as foam, with its strength, does tend to add up. wire-frame under that could have and will in future fixes save weight. plus as i have discovered for myself, store those in a cool area so that any trapped gases still in that will now cause cracking in time. the foam doesn't quite fully cure in the time instructions tell you that they do.
very good job. just wanted to share some experience and engineering knowledge there.