I have a 1980 vintage remington 760 in 30-06. The 30-06 is a favorite of mine too and indeed, a very versatile cartridge, you'd be hard pressed to go wrong with it. Mine is a carbine model, the short barrel is important to me, as I tend to hunt very thick stuff. I have held 7600's but never owned or shot one, they appear very much the same, and I don't think you could go wrong either way, probably depends more if you can run across a good older gun in good condition. As far as the comb difference, I have a Leupold Vari X III, 1.5 to 5 variable mounted on my gun, with the 20 mm objective lens, the scope is mounted on a Redfield base, with LOW rings, and my cheek is welded firmly to the stock. I could see where it would be a problem though with a larger objective lens requiring the need for medium rings. I am a believer in a low powered variable for whitetails. With a 1.5 variable, the field of view is so wide, and target aquisition so easy, I do net see the need for iron sights, and I hate to say it, but iron sights are getting blurrier & blurrier with my eyes. Just my personal opinions & thoughts.
Sincerely,
Garry