Have you had your Prolactin levels checked recently? It might give you an idea of where you are starting from. I know nipple stimulation can induce labor but I don't know if pumping before hand will help with milk coming in? It can help draw the nipple out before you latch baby on and that might be helpful.
I don't know the circumstances of you last labour but I do know the c-sections and inductions can delay milk coming in. But the very best thing for milk supply is a baby that can feed effectively. If you suspect tongue-tie again, I would recommend seeing an expert quickly, clipping could make all the difference. And I second the recommendation for the Kellymom website. It is the very best internet resource for breastfeeding.

From what I've read perinium massage does reduce tearing by about 6%, which isn't a huge amount, but after a second degree tear last time that never healed properly I am going to give it a try this time. I'm also having a water birth and hoping that helps.

Never breastfed before, but I will weigh in on the perineal massage. I am a surgical tech and during a case a few days ago, I was bending the ear of our OB/Gyn surgeons. She said that it really makes no difference. It is basically the same concept of whether you're going to get stretch marks or not. You can massage, and use oils and lotions all you want, but it's a factor of genetics and force. How fast baby comes out, your skin's natural ability to stretch and the distance between your vaginal opening and your *kitten*.
It's not what you want to hear when it comes to the possibility of either tearing or having an episiotomy, but I trust her professional opinion. She did say however that giving birth is truly like an endurance sport. You wouldn't want to attempt to run a marathon with out training and a warm up. Be sure to do kegels, lunges, and any other lower body work out that will help build muscle and reduce fatigue when it comes to the big day. Hope that helps!

I was scheduled for an induction with my first son as I was over 41 1/2 weeks, so they gave me the weekend to go into labor on my own. I was was dreading the induction so as a last ditch effort I whipped out my breast pump I received for my baby shower. I'm not sure how long I "pumped" for, but I did start contractions several hours later.

I get the massage thing too, we did it not too seriously just kind of something to try. I was doing go through labor but as soon as my son's head popped through he flipped out the rest of his body so fast I tore (according to my husband). While I don't want to tear, I 'd rather tear a little than get cut.