How's your brew doing? Do you have any tasting notes to offer?
On a similar note, I brewed similar using Belgian Ale yeast. Grain bill was pilsner, wheat malt, honey malt, lots of pumpkin, candy corn, and raw sugar. Spices include cinnamon nutmeg cardamom grains of paradise. Hops were mostly homegrown and large late additions near and after flameout using a hopback in line with a plate chiller and recirculating immersion chiller to quickly lock in flavor and aroma- Golding Willamette Horizon Centennial Cascade Mt Hood Santiam. Mash in at 110F. Decoction mash up to 148F. OG 1083 and expecting it to dry out to about 1015 giving about 8%ABV.
I'll follow up with tasting notes.