Have you thought of the Mesa Boogie V twin pedal?
It has 3 channels Clean, Blues (crunchy) and Lead. You can set them either as Clean-Lead or Blues-Lead with the footswitch. Has full EQ, Gain, Master, Presence
I'm a bit of a Luddite when it comes to guitar stuff, ideally I'd plug straight into my amp and just use the volume knob to control my sound with no effects whatsoever...
I just need more volume really, amp is already maxed out so got no headroom left...