We processed a doe last week and all 55 lbs. are now in vacuum bags in my freezer.
We use a Foodsaver V835. It came with canisters (very handy or merinading steaks, watching marshmellows balloon up, etc.) and a canning jar attachment..
One word of caution - do not try to seal liquids. Pre-freezing helps for a lot of things. It keeps liquids from getting sucked into your pump (which can kill it). Somewhat soft items with a lot of air (like crusty bread) will collapse if frozen at room temperature but will survive nicely if pre-frozen. As a test I pre-froze some hamburger buns, then vacuum sealed them. They collapsed like a cheap folding chair and looked horrible. But when I unsealed them and let them thaw to room temperature on their own they "fluffed up" quite a bit. Not back to their original size and smootheness, but not bad. My wife was not amused when I tried to vacuum bag a loaf of her fresh banana bread and it started to flatten out and collapse... Be careful what you test.
I make chicken stock, venison ragout, venison burgundy, etc. in large batches, pre-freeze it in different sized plastic containers and then freeze the blocks. I know folks who make all sorts of things and then freeze them in ice cube trays and seal bags of cubes of stock/pesto/soup/etc..
Another trick for dealing with something that may be damp, but not really wet, is to stuff a paper towel into the bag before sealing it. It will slow the fluids down enough to give you a good seal before you "weeze the juice" so to speak.
You will not regret the investment, but you may find yourself discovering all kinds of things you "need" to seal.