Hi R.,
Reading your post, I feel like it could have been written by me as well. There've been times where I feel like I'm drowning, although at 4.5 months, I'm starting to slowly feel like it's getting a bit better. There are a few things I've worked out though, so here's my advice - for what it's worth.
My daughter also absolutely hates, hates, hates her stroller and the car seat. What she does like, though, is her moby wrap http://www.mobywrap.com/ It took quite a few tries to get her used to it - I had to start her in it for a minute and then build up over several days, but now I can take her out in it and she's totally content for hours at a time. I think it's because she can look around properly and she's safe next to mommy.
My daughter hates the pacifier also; unfortunately, we have to use our pinkie finger which is irritating, but at least she falls asleep with it and then we can slip away. Without it, she won't nap at all - even so, she still only naps for about 2.5 hours a day - I think she's just too curious. Until recently, she wouldn't nap at all unless it was on me. She just really needs to be near mommy. I've started using the E.A.S.Y. method from the Baby Whisperer and it's starting to help, but that's really only been in the last week or so, and I can't get the feedings part down.
My daughter is also very difficult to feed. As soon as she has a little bit in her tummy, she forgets that she's hungry and instead just starts to look around until I give up, but then she's hungry an hour later. I really have no idea what to do about this. I just try to tell myself that I'd rather feed a bright, curious baby often, than a baby who's not interested in the world less often.
As for sleeping nights, my daughter also wakes up often. I'd suggest co-sleeping. It's not great for your marriage, but as you say, neither is being sleep-deprived. You'll probably wake up just as often, but at least you can just roll over, latch your baby on, and then go back to sleep. Once you're starting to get a bit more sleep, you might find that there are ways to look at your situation and see things you've missed, or at the very least, you'll be a happier you.
Hope that this helps.