I have never paid a person to process my meat and couldn't begin to guess how many I've done. There are many ways to get it done (without it spoiling) and many ways to process it depending on what you want for meat in the end. This is mine . . . .
The first thing to do is get it quartered. You'll basically have 5 quarters when your done (I call it 5 anyway). You'll have two hind quaraters, two front quarters, and the barrel. If you have a building that stays cool during the day hang the quarters in there. Leave the door open at night (to allow the cool night air to lower the temp) and close it in the morning. Hopefully you can keep the temp at least in the 40's. I've had it reach 60's before and had no issues. Make sure all blood shot is removed before hanging and no moisture is allowed to stagnate on the meat. If you cover it, make sure it can breath good. . . . Get it and keep it as dry as possible.
I create an assembly line (between myself, my wife and two kids). I like to start with the barrel meat first, because I covet the backstrap and loins. I work through each quarter deboning all the largest roasts that will make steaks (I prefer fillet steaks). Before I steak anything I place the large roasts, backstrap, and loins on a cookie sheet and place that in the refrigerator while me and the rest of the family clean up the remaining carcass'. I create three piles for the carcass meat (jerky, hamburger, and canning meat). I ONLY WORK ON AS MANY QUARTERS AT A TIME AS WHAT WILL FIT ON COOKIE SHEETS IN THE FRIDGE. The rest is still hanging in the shed until I'm ready for it.
Now I take the cookie sheets out (one by one) and steak up the roasts and backstrap (the loins I package whole) and I vacuum pack them and put them in the freezer (these are now finished). The jerky meat, hamburger meat, and canning meat I put in 1 gallon Ziploc bags (as many as it takes) and deal with them when I am completely done with steaks. THE STEAKS ARE EASIER TO CUT IF YOU THROW THE COOKIE SHEET IN THE FREEZER FOR A WHILE. LET THE ROASTS GET GOOD AND FIRM ALL THE WAY THROUGH, BUT NOT FROZEN (THE OUTSIDE MAY GET A LITTLE FROZEN, BUT NO WORRIES).
Repeat the process until all the steaks are individually packed and in the freezer. This can all be done over a few days as long as the hanging meat stays dry and free of flies. The meat you left on cookie sheets in the fridge can also be left in the fridge for a full 24 hours or more without trouble.
Now you can deal with the meat you put in 1 gallon ziplock bags. Personally, I throw these in the freezer and deal with them over time. I’ve never noticed any difference in quality by doing this. As a side note, if you have plenty of hamburger already, this meat makes wonderful pepperoni and thuringer when mixed with pork (bacon ends are my favorite). The canning meat is the stuff most people would probably throw away, but when you pressure can it all the gristle, suit, and fat turns to liquid in the jar leaving you with wonderfully flavored meat for use in stews, chili and gravy.
Good luck and congratulations.
For the record, when you get this system down pat, and have reliable help, you can get this done in one back breaking day.
Another hint is to lift the kitchen table up with blocks, this will save on the back. Also, have a number of knives to use for different jobs and multiples of each so that you don't waste a lot of time shapening. A sharp knife makes for easy work.