Ten2 Effects Loop Stereo/Mono

I am running a pickup and mic into the two channels of a Ten2 amp. I take my lows from the pickup and highs from the mic which gives me a solid and natural sound with little boominess and feedback issues. I want to use the effects loop but each channel is on a separate loop. I want to run both channels through a series of effects.. any ideas besides buying stereo effects pedals?