Yes!
Get the fish, and also at the store get a pH test kit if you don't have one yet.
Also get some buffer to bring the pH to where it needs to be, in case you do need to change it a bit.
Once a new tank has it's chlorine removed, temp stabilized, and the pH adjusted, you are all set to add the first few fish. Maybe test the water from wherever you collect from if thats the route you take, try and match the pH in your tank with that water (don't test the water the fish traveled home in, take a separate sample - ideally test it there at the collection site).
Start slowly, add a few fish, feed moderately as the days go by, and you'll be on your way to a cycled tank. About 6-8 weeks give or take for the various spikes in parameters to come and go. Using a commercial bacteria or some floss from an existing tank will help speed things along
Congrats on your new tank, enjoy it!

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