Patience bruh . . . patience . . . two or three months from now . . . this noobs will be an instant experts.
135 is waaaay to big for JMM. He's a natural FW fighter. If there's no 3rd PacMan fight on the horizon, he should move back to 126, probably to face Guerrero. Of course a Guzman fight would be nice at SFW as well, but I think the Arthur fight is the last fight for Guzman in the division, then he moves up... JMM vs. Vazquez for the big money is also a smart move. The only reason JMM should fight at 135 is to prepare himself for the 3rd PacMan fight if there's gonna be one. Of course it's gonna be probably at 135 or a catch weight of 132-133, which is a big disadvantage for JMM... But preparing himself for Manny against Campbell is a bad choice... too big, too hot for him... I'd say he should fight Jose Armando Santa Cruz, that's a great fight.
imo, marquez can do it. i don't know about the size difference but i think its not that much. skillwise, marquez is topnotch!