I should have prefaced that sleeping bags are one of the only things we have good versions of (though no good pads).  We each have Sea to Summit Spark Sp II.  It has down insulation and lower temp limit rating of 35 degrees with a comfort rating of 44 degrees.  We will also have the option of bring liners which increase rating by 10 degrees.

What we already good versions of:
Fishing Gear
Clothing/shoes
Backpacking packs (unsure if we should use with trash bags, or if we should buy something like waterproof sealine packs).
Sleeping Bag/liner
MSR Pump water filter (though considering getting gravity)

What we need new:
Tent
Tarp
Stove
Grill plate/grid to put over fire for open-fire cooking
cookset/dishset/utensils
Portage packs
Axe/saw
Canoe chairs
Sleeping Pad
Anything else people dont leave home without