While it sounds interesting I am not sure this will work in this scenario. Though it’s worth a try. The partition layout cannot be stripped as FOS will always wipe and deploy the partition layout as a whole. The only chance I see is remove d1p5.img file and try a deployment.
I tired that but it didn’t worked. It simple increased the size of OS drive (C Drive) and consumed the whole space.
I believe there must be some way out to deal with this scenario.