I will second MD's sound advice. I would take the 7 RM and have. Ammo will be available, recoil is moderate. Can be easily shot off of sticks where a rifle with more recoil becomes more challenging. One rifle is a lot easier than two at airports and customs. Countries like England require a bonded agent to handle rifles and ammo while you are there, charges are per rifle. Baggage fees will add up. I like to take down my rifles and carry them inside a single duffel bag with all my other clothing. Essentials go in a small carry on.
You posted while I was writing this. A 375 is made for Africa, I find the recoil less objectionable than some of the bigger 300 magnums. For soft skinned game the 250-260 grain bullets have done well, either monos or Noslers.
Hope you can find some components.
