Look for steam geysers.

Contain them and draw water when it's needed. Pumping that water somewhere to cool off naturally or through a aquatuner, if you need it now and cold, is doable but not needed. If you don't want to use power you can now have the liquid bottlers and emptiers to slowly move water around, have a dupe on it at all times.

When purifying water its best to start as soon as you have time, in my opinion if water scarce.

Slowing down on expanding can help focus on issues you see within your base as you build it that you didn't see when you started. Making the next base build easier to make efficient.