I don't know if I HAVE nailed the Satch rhythm sound on the Recto yet.
What era are you talking? Like, Flying? Surfing? Extremist? New stuff? He's changed his sound a ton over the years.
For a Satch-style lead sound, try gain about half up on Ch2 Vintage, treble at 0, mids at 3 o'clock, bass and presence at 11 o'clock, channel volume at 9 o'clock, master as loud as you can get away with, and an OD set for a almost-clean boost out front. I use about 1 on the drive and level straight up on my Chaos TS9.
That said, do you HAVE to use the Recto for this show, or do you just want to? Unless you can get some significant playtime on it between now and then, I'd say go with the rig you know. These things are a bitch to dial in until you get the hang of it, and we can give you settings until we're blue in the face, but until you get to "feel" how it works for yourself and dial it in for what works for you, you won't be happy.