Sounds much more reasonable now…
I am not familiar with Cilogear, but that aside, the three brands that you should also take a look at are:
o Granite Gear
o Gregory
o Osprey
As for gear pieces, my thoughts are that your total weight is going to be heavy — even for three days of water — esp. if you will also be carrying some of it for your girlfriend. I would suggest being very aggressive about cutting weight — esp. on those "nice to have" items.
1. Tent — did you look at the two tarptents I mentioned? They are very suitable for desert camping and this is probably your best place to shave weight (as compared to the Hubba Hubba).
2. Sleeping bags — good choices — just be sure that the No. 4 is sufficiently warm for desert nights in your area.
3. Sleeping pads — you will need these. Blue foam is the lightest but uncomfortable. Consider either air pads or self-inflating pads (e.g. Prolite) — aiming for 1 to 1.5 lbs. per pad.
4. Cooking – Are you doing real cooking or just boiling water to rehydrate freeze-dried meals? I would highly recommend choosing the latter. For 3-4 days, you should use an alcohol stove + denatured alcohol fuel. Another alternative is a canister stove. I would not want to haul an Optimus Nova — or any other liquid-fuel stove — plus sundry cookware! With freeze-dried meals, a mug can double as a pot — so you can leave all the other cookware at home.
5. If rain is exceedingly rare, all you need is a wind shirt. Otherwise, carry a rain jacket. You won't need both. For light rain, you probably won't need rain pants either.
Hope this helps.
Edit: I will be visiting your country next month (3/19-29). I am looking forward to it! :)