A few things I would change, for me personally. Just my opinions, your mileage might vary, etc.
- I don't use a rain fly on my pack, unless the forecast is terrible. Cordura isn't easy to wet out.
- I don't carry a ground cloth with a bivy or tent when I backpack. If I did, it would be for protection of the tent floor, and polycryo wouldn't be a great choice for that.
- I would skip the bag liner and sleep in my insulated clothing if needed. I don't know how true to temp your bag performs, but that's what I do with a 30-degree quilt.
- I probably wouldn't carry anything to inflate the pad with and just use my mouth instead, but I've never inflated that particular pad.
- You're packing two fleeces (Peloton 97 and BO Timber Creek) that essentially do the same thing; I'd take the Peloton and leave the other.
- I only take two pairs of socks - one pair on my feet, the other pair staying dry inside my pack, or hanging in camp getting dry.
- At most, I'd carry one extra pair of underwear.
- I never ever wear rain pants, but that's because I hate them. I'd ditch them and keep the gaiters.
- Your rain gear can serve as a windbreaker, I'd leave the Specter hoodie at home.
- Is the Havalon the only knife you're taking? I'd add a pocketknife for general use.
- I'd pick one filter to take, and I'd leave the pre-filter. Boiling water can be your backup. If you've used those Sawyer bags and been okay with them, good. I found them to be a PITA to fill.
- If you're using your phone just for navigation and photos, and that's all you'll need to recharge, you can keep it in airplane mode and probably only need to partially recharge it once. I'd leave the solar getup at home and just take the battery bank.
- 12 ounces seems like a lot of 1st aid gear. I'd make sure you've got chapstick and maybe even sunscreen in there though.
You may also be able to split shelter weight with someone if you don't mind sharing a tent. I probably wouldn't, but it's an option. You can probably divide up game bags among your group and not take more than a couple of sets, depending on how many people you'll be with - the reality is, you won't all be successful and if you end up needing more game bags, you'll be humping meat back to the truck and can pick them up then.
The good news is, you shouldn't have any trouble getting all this into a Metcalf.