I have to agree.I think it is one of the most pertinent questions ever asked on here.Everyone wants to know how to kill an elk,what broadhead,what bow weight-on and on.
When you get a huge game animal on the ground,it is a big job and a big responsiblity.I don't mean to scare you,though.It can be done and probably quicker than you think.The advice above should get you there.
Last Fall,I put a moose on the ground just at dark and had to cut it up by myself,in the dark.It was a little awkward but I got it done in about 2-3 hours.There were no trees close enough to tie off to so I had to get a leg on my shoulder in order to get under it when severing.Once 2 quarters and the head were removed,I was able to roll it to the other side.The long legs gave me enough leverage to do that.
I will add one bit of caution,put safety at the forefront of your thoughts.You will be working with razor sharp knives,under awkward conditions and positions and you will be far from help.You may be in a hurry or stressed.Slow down and pay attention to what you are doing.At no time take a knife stroke in the direction of any body part.It is easy to forget.Especially not your opposite hand,wrist and your inner thighs.
Accidents happen and they can be fatal.Razor sharp knives are important and you want a sharpener too.Just don't use them on yourself.
I like a sturdy frame pack but it doesn't have to be.I keep the frame pack and heavy duty game bags at the truck.If you have some sort of pack with you hunting,that you could get one quarter in,pack that back to the truck and the next trip in,take frame pack etc..Plan on about 5 trips for 4 quarters and head.A saw that will let you cut the antlers loose from the rest of the head will be worth it's weight in gold.
I know some young,tough guys that can bone out an elk and 2 guys can get it out in one trip.Those loads are over 100 lbs each,in rough terrain and usually at high elevation.Not many can do that and you may not be used to the terrain and altitude.
Elk hunting is a physical deal,traveling the country and packing the meat out.Get in shape for it and pace yourself.Also check game regs.There may be rules about leaving proof of sex attached etc that may change how you cut an animal up and what you leave or take.
It is a very responsible hunter that studies this issue well ahead of the hunt.I'm impressed.Good luck and take a lot of pictures.