Plenty of camberings out there which just shows how many different ways there are to skin a cat.

I'm a fan of 30-06 Ackley Improved for a heavy hitter. Far more efficient than the over bore magnums. 30-06 AI will drive a 180 grain bullet over 2,900 fps from a 24 inch barrel. Some run 180's to 3,000 fps. 300 Win Mag only beats that by 100 fps and it needs around 12 grains more powder for that 100 fps. While the 300 Rem Ultra Mag uses over 90 grains of powder and still does not break 3200 fps with a 180 grain bullet. To me that's a tremendous amount of recoil for nothing. Plus with close shots it's hard for a bullet to stay in one piece at over 3K fps anyways. 30-06 AI does a good job on the various 200 grain bullets and will push a 220 grain Hornady round nose at around 2,700 fps. The AI will hold something like 60 grains of H4831. That is a lot of powder.

You also have the advantage of being able to use any 30-06 ammo off the shelf at the local gas station.
I'd want a 24 or 26 inch barrel but if all you want is a short lightweight you could simply send the stock 22 inch 30-06 Savage barrel off to be chambered AI. Removing more weight off the muzzle end with high price material is IMO all wrong. Muzzle weight is what keeps the rifle out of your face when shot.
Standard Savage offering of 22 inch sporter contour barrel is already to short and to light in my view. But that's just my 2 cents.

If I were to build an Alaskan rifle. I'd use a 24” barrel with a straight sectioned tuned at the muzzle with a band style front sight. A low profile aperture receiver sight then a low power light weight scope in front and over that. Keep the weight down by not hanging a 1 ½ pound scope package on a 7 pound rifle. I like a variable scope that will turn down to 1X so I can shoot with both eyes open. Have a Weaver 1 x 3x that I like and it's cheap enough you can buy two.

Of course the AI is a hand load round. Standard 30-06 is kept at low pressure in difference to old 03 Springfield but I believe you can buy ammo loaded up higher pressure anymore. A set of AI reloading dies does run a step higher in price than standard dies but the 30 RUM dies probably cost as much. 06 brass will be way cheaper than the big mag brass. An Ackley will cost a lot more to shoot since you'd actually shoot through fifty rounds or so just for fun.