Power cable

I’m going to start replacing my power cords. Any recommendations where to start? I’m on a budget so I’ll need to purchase one at a time. I just purchased a Transparent Premium Powerlink as a start. Thoughts on the most critical area to put it. Should it be placed powering my Levinson amp? Initially I thought either it could per the amp or preamp or dac etc. This when I started thinking and realized i have a Furman Elite 15 power conditioner. My Proceed AVP 2 preamp, Ayre Codex DAC and Bluesound Vault are all plugged into it. The only thing, it has an attached power cord. If that cord was replaced with a quality cord, does this eliminate purchasing separate higher end cords for each piece? Is there a way to do this?  Looking to be as economical as possible without sacrificing sound quality.