You will simply triple your costs if you buy non-UL gear. You will use it once, realize how heavy that made your pack, and spend twice as much lightening your pack thereafter. The very first rule to remember:
IF YOU ARE NOT SURE IF YOU CAN LIVE WITHOUT A LUXERY ITEM, YOU CAN.
That is not to say that the same can be said for warmth, rain, and food preparedness.
That being said, don't buy a pack that can pack the kitchen sink and all the items in the world. That will be what your instincts tell you to do, fight it. Buy a pack just big enough to take the smallest tent that will work for you, your food, layers of clothing needed to keep warm, perhaps a tarp (look into cuben fiber tarps)and your water filtration. a sleeping bag/pad, if it can fit in the pack great but if not keep it on the outside in a waterproof compression sack. I would not purchase a heavier bag just for the purpose of having enough room for your sleepingbag (or quilt which would be lighter to fit in your bag.
Next, consider where you will be camping. If you will have no problems fingind finger-sized sticks to burn, I would purchase a wood burning stove to cook your meals. This would mean no fuel weight other than some vaseline covered cotton balls to start your fire with. IF you need fuel, I would think about an alcohol burning stove or a nesbit burner. search the forum for these stoves, there are a bunch of them out there and there are quite a few to choose from.
Next, be careful how much you pack in clothing. Most everyone I see overpacks. Make sure it is light fiber that, if wet, will dry quickly (no cotton).
There are a bunch of gear lists to look at to help you as well. I highly suggest trecking poles as if you do any river crossings could save you from going into the drink.