It doesn't make much sense to do a Hub Swap
- this means dismantling a (probably) professionally built wheel to make an amateur, "first-go" one, using quality vintage parts.
if you've got the wrong wheel, sell it and buy the right one.
If you want to learn wheelbuilding, take apart a basic or obsolete one and rebuild it.
Twice.
You dont even need a spoke key,
or a jig, but they make it a lot easier.
I only use a tension meter when dealing with alloy, carbon or bladed spokes, or a superlightweight rim with limited spokes, as you need to reference manufacturers' figures- challenging if the parts are 25 years old plus.
If you're starting with a built wheel, you can feel and ping the spokes for your point of reference on tension
The fingers and ears do the job perfectly - they are incredibly accurate tools.
The most vital tool for wheelbuilding is experience.
Your first wheel will not be your best.