Need some help. Older rocker from the 60's. I need to down size to a multi efx unit. Can't justify $$$ for latest multi efx. Play jazz, early rock, blues. Like Steely Dan, Stones, any 60's to early 70's sound, no metal necessary. Interested in Boss GT-8 or possibly ME80, or possible Line 6 alternative. Playing through a MMRD50. Great clean amp. Actually bought NUX MG300 but lacks capability to change on the fly. Any help opinions or suggestions would be much appreciated!!