You might give Grey ghost outfitters a call, out in Raton New Mexico--we had very good luck with them in October of this year. 30-06 is a great rig, I personally love a SAKO 85 right out of the box with factory Sierra 165 tipped game King, Leopold VX6HD 3-18X44 or 50 mm objective. That combo will shoot as good as any custom and will save you about 2K on top of that. Any of the heavy medium cartridges will put down an Elk at Range. Nothing wrong with that .308 to about 500yds. My last two elk were at 500 and 550 yds respectively with a 7mm Rem Mag and when my rifled failed (this year) I had to borrow my buddies 6.5 Creedmoor (which would not be my go-to Elk rig) and dropped the bull at 550 yds, one shot DRT. last year I knocked down a big muley in CO at 475 yds, one shot DRT with a 7mm-08 (Fierce Custom-Barnes 145 LRX bullet). I have a bunch of big 30s and 33s but I just don't use 'em that often anymore. You might also take a look at the 6.5 PRC or the 6.8 Western...I just picked up one of each recently and I love their performance, light weight, lack of muzzle blast and recoil. That 6.8 with 165 gr bullet hits with the same energy as a .300 win mag at 500 yds, still has 1200 ft lbs. at 800. For that long range gig, optics is the key, good quality dial turrets and practice off the sticks. FWIW, I'd really like to shoot 'em closer, but the shots presented have all been a "fur piece", so I was glad to have equipment that could do it.