I decided to use the original hem and keep the side vents. After I got to work though. I figured out that keeping the side vents with the off-set hem meant I'd have to duplicate the vents on the inseam.
When it was all said and done, I decided that next time I'll keep the vents but re-hem the back pieces to match the front and skip constructing the inseam vents.
As if to validate my pocket stance, the first thing Enzo did when he put these on for the first time was locate a pocket and deposit a car inside.