My plan is be to stick with the
FNP result and not summon anything. I like it because its free

.
I am knocking up a wingless daemon prince tho just in case.
Part of me wants two bloodthirsters and run the axe of ruin, but then another part of me has no money.
given your collection, a skull cannon and a lot of hounds, seem like a decent buy.
You get a lot of spare parts with the new
BT kit. probably enough to convert another model into a khorne
DP.