1) Home defense, personal defense, edc.. Glock 17 (check)
2) Raccoon/groundhog/squirrel/fox/ect problem solver, range toy.. RJF ZK-22 (check)
3) Wife's edc, personal defense.. Glock 42 (at the top of the waiting list at the local gun shop)
First off, if you are a hunter, you'll probably already have a hunting rifle/shotgun. If you aren't, any firearm will get the job done once the SHTF.
IMHO, there is no order in which to acquire, so the numbers are for separation, not a ranking/priority.
1. Full size pistol
2. 2nd Full size (1 or 2 or both, should be a double stack)
3. Compact pistol
4. Compact revolver
5. SAA revolver
6. DA revolver
7. Large cal. (.44mag, S&W 500, 50AE)
8. .22 pistol
9. .22 revolver SA/DA
10. Go back to #1 and repeat.
11. Did you not read #10, Go to #1!!
Browning HiPower, Mark III
Browning HiPower, Silver Chrome
Browning HiPower, Practical
Browning HiPower, Capitan
Browning HiPower, Inglis
Browning HiPower, Mark II
Browning HiPower, T Series
Browning HiPower, C Series
Browning HiPower, Renaissance
Browning HiPower, Louis XVI
FN HiPower, WWII w/ Waffenampt markings
CZ-75B
Magnum Research BFR in .45-70
I think the 20 was a wise choice on home defense but you may want to find a cheaper way to shoot it for practice, even a smaller glock in not a way to run a different caliber through it.
To carry. Go with the biggest gun you can carry every day. Unless you buy a couple different sizes for this reason. So start with the 19 then look at either of the sigs.
Range is whatever. If you ike the CZ cool, but range/toy would be best spent running your home defense or carry gun. But get whatever fun you want.
Hunting, we need to know what you're hunting.
These are my opinions. But I think you will end up with more than 4 guns
But as far as order of acquisition is concerned. Get one for defense that will be with you the most (receive the most use) or be the most important I guess you could say.
I vote for the berretta 93r, it would fulfill all the requirements, even an original M11 in the devastating 380 would do but the power of so many devastating rounds that fast might just be overkill