If you're wanting a good analog delay that is similar to the old MXR that Jerry used, then I agree, the new MXR Carbon Copy is a nice unit. Remember that Jerry had an Ernie Ball volume pedal (or 2) connected to that delay pedal so he could dial in the appropriate delay time and delay volume.
Maybe consider the very cool and VERY analog Electro Harmonix Deluxe Memory Boy. It has a tap tempo button but the delay is all analog, kind of dark and lo-fi echoes like Jerry's. Simply tap out the delay times with your foot to the tempo or to whatever you feel the song wants. Even has a musical time denominator button so you can tap quarter notes but it'll play triplets, like a cool Sugaree delay setting.
Also, for a killer delay that can get tones like Jerry's old delay but with all kinds of tweakability, an analog dry path, and the analog sound, the Strymon Brigadier is really, really hard to beat. Killer delay.
... and it's just like any other day that's ever been...