i believe the rem 700 sendero in the older model with the black matte barrel and action came in 30-06. you could call remington. i have seen them for sale in 270 and 25-06. i share your preference for the 30-06.roninflag
I was talking to a smith about his work at a gun show and kiddingly asked why no 30-06. He smiled and said that he had never owned one. He was always looking for the perfect task specific caliber. I think his quote was "The 30-06 wasn't excellent at any one thing but very good at everything." No one should be without one. (the last quote was mine)
You can get the Tikka T3 Varmint (blue or stainless) in 30-06 with their standard long action. I have the 308 stainless varmint version and have to say I love it, especially in 308. My next choice for LRH in this would be the 338 win-mag, but they also make the 300 win-mag if you want as well.
FWIW I like Savage actions as well...someone was pointing out their new 12 F/TR Precision Target Rifle which looks like a sweet piece (in 308 sorry)
I too had an itch for a heavy 30-06. Rem never made the sendero in that caliber, so I looked elsewhere. The only other two companies that made factory rigs in 30-06 were savage and winchester. Both are hard to come by now, but they do exist. I bought a winchester 1965 24" heavy barrel a few years ago and have never looked back. If I found another, I would likely buy it as well. I have also been considering building a savage with a heavy barrel, but haven't gotten around to it.
aftermarket douglass XX premioum barrels (chambered) and ready to install are available from SharpShooterSupply for the Savages in most common calibers and variety of contours. If I remember right, cost was right at $305.