Wyatt I'm tracking Ebay currently. A generic 3-9 or 4-12 scope would be easy to find for cheap. That might end up being what ends up on the 308. Really as long as they can plug caribou in the fall with it I'll be happy. Maybe save up a bit to get a nicer 2-10 of some kind for the 375.
I took stock of my hunting the last couple years and realized if I could have financed a nice fly out float hunt; if I had blown less money on various toys I didn't technically need (new 358 rifle project restocking my 375 etc). So now I'm only spending money on stuff that significantly increases my ability to kill game. As of right now the priorities are 1. a better range finder (I skipped a shot at caribou because I couldn't range them). 2. Better scopes for 300+yard ranges.
I'd check out Primary Arms, Athlon Optics, and SWFA, they usually always have plenty to choose from. Something to keep in mind is that with budget scopes you usually get budget turrets, so I'd say go with a MIL reticle and not rely on dialing all the time (holding is faster anyway).
Since you're serious about these scopes (not taking that shot on that Caribou hurts!) I'd honestly skip BDC reticles and take the time to learn how to use a MIL holdover system, this will give you much more flexibility with calibers/ round selections in the future. There's a guy named Ryan Cleckner with National Shooting Sports Foundation on youtube (former Ranger Bat Sniper) with some good videos on this, breaks it down simple so even youngsters can understand. Look for "Understanding Mils".
Taking the time to learn these style reticles will pay dividends for all things shooting going forward (Steel, groundhogs, deer, whatever). BDC reticles are easy for companies to sell, because they market well. But if you take the time to know what your MIL holds are based off using a laser range finder, round type, specific gun, and where your rounds are going to be, it's much more accurate. Also if you want to get the most out of any holdover reticle a First Focal Plane is a better option, this way your subtensions don't change through the magnification range.
Something like the Vortex Diamondback Tactical FFP in 4-16 seems like too much at first, but honestly I think if you spent the time and learned it you'd thank yourself. You're getting a lot of scope for the $350 (on primary arms website). Vortex warranties are hard to beat as well.