But there will be a neutral spot (yes, that is just a dead spot where nothing is engage, not like the put a gear in with no teeth).
How many times do I have to say it,
THE DELICA DOES NOT HAVE A NEUTRAL ON THE TRANSFER CASE
a "dead spot where nothing engages" is not a neutral, it is a safety hazard, you're just asking for it to fall out of that spot and engage.
If you think there's a neutral on your Delica, you either don't know what neutral is, or have never looked at your transfer case selector.
There may be a port that looks like it possibly could maybe almost be a place that could sort of possibly lead to a method of installing a PTO, but it is NOT a PTO, it is NOT a place you can easily add one, and it is NOT helpful in any way, shape, or form to someone wanting a PTO accessory.
Everyone has a different idea of major mods.
Adding a PTO requires a new transfer case at a bare minimum, probably also some finagling to fit a non-delica transfer case in to a delica. this I would consider a major mod.