This came up at Christmas when I did a lot of reading/research about gin.
It could be said, this is in the style of gin but the lead is caraway not juniper.
The traditional method was soaking the flavours in, but I am sure commercially that not the case now.
A sputnik will give you a brighter, cleaner flavour. Soaking will be more earthy and colourful.
I have never made this.For the sputnik I would start with something like...
1 liter each water and 40% neutral *
12g caraway
4g juniper berries
6g coriander
4g dill
1 star
Pinch each of Orris & Angelica**
* I start with a litre, just 'cos its a trail. I find 1l enough to prove the recipe. Enough if it is shocking. Enough to taste if it is a stunner. You also get roughly 5 'trials' per DJ of neutral before you start back at the yeast stage

..and 2nd or 3rd trial normally get quite close. AND you can increase the recipe on a linear scale when you get there with a basket..not the case for a soak.
** these keep or bind the botanicals flavour as the spirit is stored.
I omitted the fennel 'cos its quite strong/distinctive and could be introduced later.
But like Robert said... you are the trailblazer - keep us posted.