Hi Brushmore,
This is what i do. All bags and carry on are weighed for no surprises at the airport counter.
For checked Baggage you are allowed up to 50 pounds per bag. Your rifle and one other bag, remember to have wheels on all your bags for ease of moving. Have a system set up to attached the bags to each other for pulling to and through the airport. i do not carry bags any longer. If your family members cannot pull their own bags, it stays home. You will have your hands full with your rifle case, your carry on and checked bag.
My checked bag is usually packed above 40 pounds (shells case inside) with my rifle case at 48.5 pounds, and my carry on bag at 9 kilo's (20 pounds). That is all i can easily move around the parking garage, airport and i have a little difficulty on escalators.
Wear your jacket, and heaviest shoes while traveling, this allows for more room in your bags.
Take a look at what, clothing you really need to bring along and stay on the lite side. Your laundry is done daily or ever other day. I stay with 3 set of clothing. Remember you can give away your clothing at the end of your trip. I usually give a shirt, socks and 1 pair of shoes away. this makes room for gifts that you may purchase.
Look at your carry on bag: if you fly south african air your carry on bag will need to stay at 8 kilo's, they have been weighing the bags prior to boarding and if your bag exceed this you will have to check the bag.
i pack, 1 set of clothing in the carry on bag with my camera and binoculars. snacks and medications if any. right at 8 - 9 kilo's
Set up your check bags and pack your clothing and shoes first and see what room is available per bag. Now you are ready to pack other items and then, look at what you can add to each bag and stay under 50 pounds. You need to pack your bags at least 1 month prior to departure. i have to pack, weigh and repack many times to make sure i have what i need. Give way's are last and many get taken out to make bag weight.
I have also done the following: If your family members have the ability to take a second bag, go to a second hand store and purchase a wheeled bag, and load it up with what ever you want to give away and give the bag away also. The thrift and second hand store is a good place to shop for clothing and shoes.
I see your girls are collecting clothing, remember that our winters are colder than theirs and bulky winder clothing will take up a lot of space. You probably have too many items already.
Men:
long sleeve Shirts - Small & Mediums are the norm -
tennis Shoes - size 6 to 10 is what i have taken. every thing goes.
Socks - mediums & Large
Jackets: lite & medium weight
Women:
Shirts & T-shirts - Small & Mediums - they like color
Tennis Shoes & crocks were a hit
skirts - ask - look at pictures of what the women are wearing
Socks - the ones i have seen in the villages like the socks that come up to their knees
Shawl -
sweaters -