Hey there Beau, I would seriously recommend booking a few weddings and renting for the first 1 or 2. Figure out what works well with your particular style. Being a wedding videographer I can tell you that you might want to really start considering everything else you'll be needing to successfully film weddings. Real quick basic of what your bag should have(and I'm sure you have acquired some of these already).
-fluid head tripod
-at least 1 lav mic, you can get them cheap, and a zoom h1 to plug into
(A shotgun mic will not suffice for capturing a wedding, you can use the lav/h1 during the vows. Then at the reception use the h1 alone to plug into the Djs board to get a recoding of the nights audio)
-Your camera(pending...) *2 would be preferable for a ceremony but receptions you'll be fine with 1.
-2 lenses, (there's no such thing as a one size fits all lens, and if there is some 18-3million mm lens it won't stop down to a wide enough for low light.)
-get a fast 50 1.8 dirt cheap and that covers your low light
-and something in the 24-70 zoom lens range. (Glass is expensive so defiantly buy used)
-your going to Need 3-4 batteries
-lots of sd cards, all need to be class 10 for video, 16gb and beyond. If your shooting alone you may not have time to run to your computer and dump a card, back it up, and reload. So memory is extremely important, you'll want good cards too that are fast and reliable, the worst thing at a wedding is running out of space right before the first kiss, or dance, etc.
You want to not even worry about 4k or some camera that is going to leave you with way over 100gb of footage at the end of the day, all to then process on your computer, and buying a new computer that can handle it is obviously way costly. I do recommend buying a Samsung 840 ssd (Evo or pro) to use for editing and running your main applications off of.
-really important is a nice bag or preferably hard shell case that has all of your equipment neatly stored and easily accessible.
Sorry for the long post, it's just all of the little things add up and before you know it, batteries, memory cards, filters (little things) add up to a couple hundred dollars easy, and that's just scratching the surface.
I only say all of this because your doing weddings, if it wasn't for that than this process of just buying a camera would be simple.
With all that said I would rent for a couple gigs, search craigslist daily, talk to your local photo video friends and jump on any really great deals. I don't know the rules of the forum, but I being in your position starting out I can relate, and I think a canon apsc camera is a great bang for the buck, I have a t4i with a 24-105L that id be more than happy setting you up with as a first camera for that price, and being a fellow wedding videographer I can help you acquire a cheap kit, let me know if you ever need anything. Good luck man