So I'm looking to run my effects in stereo, but I really need some help as I seem to have a lot of, yet strangely very limited, options for doing so because I'm mainly using vintage gear without true stereo input. My modulation is all at the end of my board and into a small 2U rack, all have options for stereo, but all also have mono input. The chain goes as follows: Maxon PH-350 (mono in/stereo out) > Boss CE-1 Chorus Ensemble (mono in/stereo out) > 90's big box DMM (mono in/stereo out > (rack) Korg SDD 3000 (mono in/stereo out) > Lexicon PCM 70 (mono in/stereo out). So with only mono in's at my disposal, do I even have options? How would you wire that chain? They will be going out to a '69 Vibrolux Reverb and a smaller '72 Champ.