nope, the original diagram you had was a better attempt. the changes you need to make to it are.
Red is to the Pedals
Blue is the Patch cables.
the ? mark is To the amp, not the one you show, that is a feed thru from it's front input. there are 2 different inputs each with its own output. one is buffered one is not.
"Tone is in the instruments. Technique in the hands. Do what you will." ~quote from some guy at the TGP forum
"Without a doubt, the quality of your instrument will effect your tone, and any pickups, effects, amps, and microphones used along the way will also have an impact on the sound waves."~Cameron Mizell