Hi Roman.
If you build it 3mm internal diameter and 5 wraps it will be around 0.65 ohm.
When you wrap a coil you can do it two different ways so you end up with the legs on one side or the other. With the Zeus it's better to have the legs one particular way so that you don't have to twist the coil so much to get it straight in between the two airflow pillars.
Instead of holding the bar and holding the wire in front of the bar and wrapping the coil away from you hold the wire and then the bar on top and wrap the coils towards you. It will put the legs in the right place.
When you install the coil on the Zeus you'll see that there are 3 rows of air holes on each pillar. Set the coil so it is straight between the two pillars and the top row of air holes is in line with the middle of the coil or there abouts. You don't want the coil to be too low.
Any problems let me know.
This is a very handy tool for working out coil resistance...
https://www.steam-engine.org/wirewiz.html