How screwed is my early temple?

You can place the spymaster there when you have it but you’ll have to lock it so it doesn’t get deleted. Although why’s your chain not starting from the very bottom?

Edit: I see you do have a spare spymaster but only place it when you have the locks.

you have to remove one of the legion barracks, the one top left of corner, to place spymaster there I think. And then a lot of locks to secure . At that point i would maybe try to not have as many buffert-rooms, to make sure whatever you are NOT locking actually gets deleted.

You could potentially wait with doing this until you got more spymasters to bulk up on locks, and get all the rest of your rooms deleted first so you have more control over what gets deleted.

I don't understand your start of the chain tho, so might be worth just starting completely over anyways. Unless you have some smart tech with a new sac chamber being placed planed out. But since yours is already lvl 3 you need to delete it, get a new one, then get the sacrifices. Seems far fetched.