Can I have suggestions for a lighter pack (got parameters)

First pack that immediately comes to mind is the Zpacks Arc Haul. Somewhat newer so not too many reviews but from what we have seen so far, this seems like a pretty bomber dyneema pack that can handle higher loads. Slightly over your price range. Also, does not have an internal frame. Take a look for yourself, would that external frame hinder you at all? Not your traditional external frame.

Another options is MLD Ark or possibly the Exodus if a little smaller. Solid company with high quality across the range of their products.

Also, you might want to check out the other thread on the first page asking about packs. Similar parameters. http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=103718

The up to 35# is the difficult part in less than a 2# (or 2.2#) pack.

Here is my piece on just such a search where most of the contenders are discussed expect McHale

https://40yearsofwalking.wordpress.com/2014/03/04/the-search-for-the-perfect-pack/

If you need to carry up to 35 pounds, you would be better off attempting to cut weight in all areas except for the pack. Just my opinion. Otherwise, the arc haul is the only thing that really comes to mind.

I bought a Exped Lightning 60 off gear swap that I am experimenting with. The previous owner had trimmed the straps and I cut out the internal pocket and it now weighs 36.3oz. The advertised stock weight is 41oz.

"If you need to carry up to 35 pounds, you would be better off attempting to cut weight in all areas except for the pack. Just my opinion. Otherwise, the arc haul is the only thing that really comes to mind."

Sorry I must have got the weights wrong!! Oooops everyone (insert redfaced smiley here).

I am at 16pound total weight. That includes a 2.2 pound pack (the ULA Circuit). The only thing that fluctuates is how much food I take. Working on the rule-of-thumb of 800g (28ounce)/day and the fact we head out for up to a week at a time so take about 12 pound of food making a TOTAL of 28 pound not 35. Sorry for the confusion!!

Yup, 1kg is a heavy pack. Most of the packs I have are <2 pounds. Note that the volume of the ULA is not quite correct. Adding all the pockets, main body, etc it comes up to ~3700ci or about 60L. But, they advertise 4100ci or 67L. Hip-belt and frame is a given at those weights.

Probably the Arc Blast or Arc Zip from ZPacks are the only packs in that range that will reduce weight and still maintain the super-large volume. I don't generally worry about volume. My food bag is always my single largest volume item in my pack, usually accounting for 1/2-3/4 of my total weight at the start of a trip.

1) Get a tall side pocket. Several people have recommended it to me.
2) Get the adjustable torso height/load lifter option to let you exactly fit it.
3) Get the belt pouches. They are real handy on the trail.
4) There are several options you may consider to boost the 60L to 67L.

At around 20oz with additions, that should save a good 14oz off your current set-up. Not exactly an internal frame, though…it is not removable.

I just got an Arc Haul, and I am very happy (just ordered an Arc Blast for my wife). Although technically an external frame, it moves with you like an internal frame. And I swear if makes the same loads feel 5lbs lighter (I ran it head-to-head against some other, slightly heavier, packs). And I think you'll like the back panel mesh (I certainly do, especially compared to the cc foam against my back on the ULA packs).

Actually, for the lighter weight you mention in your second note, you can go with a Gossamer Gear Mariposa @ Medium: 29.1 oz. (825 g) and about 60L, but, the volume is highly under rated since they do NOT include any extension collar measurements in the volume. But it is significantly heavier than the Blast (~20oz) or even the Haul (~26oz) after adding stuff. Everything is already included in the Mariposa. It is also dynema/robic with excellent load carrying at 35 pounds and highly water resistant.

Durability was a major concern with GG after the G5 and other packs(Murmur, Whisper) were made. The spinnaker fabric used would stretch, and not rebound. Eventually it would fail even moderately overloaded. Silnylon fixed the problem but you lost the huge weight advantage. GG has been going out of thier way to produce a good, long-lived pack, these days. Easily capable of 5 years on the trail.