Could I get help setting up my second Giveaway?

I don't see it on the store page of the base game. There are other complete versions. If I goto steamdb I do see this.

delux ed

This is a bundle type, not an app or sub. I don't think these are on steamgifts. But hopefully someone who knows for sure how bundle types are handled will be along soon.

As cals7 said, the deluxe edition is a bundle and thus can't be added. I had the same issue with CHUCHEL Cherry Edition; when I created a support ticket for it, smythe told me the following:

We cannot add "/bundle" to the giveaway list, since they are metapackages. The Steam store automatically subtracts the price of the games you own from the total, while it doesn't if you buy a "/sub". We can only add "/app" and "/sub".

You can create a giveaway for the Trailmakers base game, instead.