Remember that you will be shooting multiple times a day. I have taken many folks on their first trips. I have never seen anyone using a 375 or 338 maintain their shooting ability over the course of a seven to ten day trip. In NA you may shoot a couple of shots a week. Not so on a plains game hunt. NOTE: the guys I took were not participants on this forum.
A 30/06 with a 165-168 monolithic bullet is perfect. Complete penetration helps with tracking and recovery. I have used a 270 with 130’s and never had a problem on anything, including Eland, so your 30/06 will be just fine. If you insist on Partitions then use 180 or 200 grain bullets. The shots will be within 275 yards.
I have used the 6-36 two or three times. Worked well but I have a slight preference for a 3x9. A fixed 3x isn’t enough.
“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away”. Antoine de Saint-Exupery. Posted by Brad.
