http://stronglifts.com/how-to-gain-weig ... inny-guys/
this isn't all vegan, but you can take the numbers into account.
there's no such thing as a hardgainer.. just eat more protein between lifts.
and maybe get deeper sleep..
turn lights off an hour before sleep (melatonin). make sure you sleep in silence (alpha waves are required for muscle).
and i don't know if you're planning on enough protein. i'd shoot for 200g/day.
if you want to eat more protein in one sitting, get chlorella. the chlorophyll will keep you alkaline when you double-dose the protein scoops.
i was trained 3 sets of 8 reps. once 24 reps are complete, add 5 pounds.
eating lots of pasta and protein should get you where you want to be..
i feel like i'm rambling.