first of all, boil for 90 minutes. always a good practice.
Freekeh is somewhat smoked. i'm not sure you want smoke in a saison.
also 23% unmalted wheat is too much.
i would personally leave the spices out. the yeast will give it plenty of spicy character.
i would have waited with the Flanders. it would have started actively eventually. i don't like the idea of starting hot and than cooling down. but six months of fermentation will mellow it out anyhow.