Is it possible to get a quote on upgrading my air cooled pc into a fully water-cooled setup, including cpu and gpu?

Yes

yes at micro center you can.

I doubt that they will quote a price. Best is to go in and consult with the sales folks and come up with an estimate.

Uh, yes

Ask the experts at Microcenter

You will have to call the center

Their experts can do that! Call them