Tough Call
...
For me personally, knowing what I know now with my full size P220 and my 2 1911's, for first time owner, first time gun, I'd steer ya towards the best of both worlds IMO, a Sig P220 Carry SAO, especially for "ease of disassembly, inspection, cleaning, and reassembly, along with, no teething problems with Sigs and what they will shoot/eat, and what they won't.. they just start shooting, accurate out of the box, and keep on going..
So my best and easiest road to take choice for ya would be either Sig P220 Carry model (shoots just as good as a full size, no difference in recoil IMO) but offers less barrel and slide length along with SAO, cock and lock, OR DA/SA is your best choice. DAK is for later, maybe.. But if you go DA/SA, then your next gun, and change, should be with SAO, you'll see.. lol
BUT.. With a little bit of time, in disassembly, inspection, cleanings, and reassembly of my 1911's, they really are very easy, but that is not an easy first, second time, event that comes easy, as does the Sig from the get go.
But, knowing what I have "learned" and "experienced", both in grip feel, and ease of accuracy and finding out what my 1911's like and don't like, I give both guns, a big thumbs up.. Both guns are GREAT platforms, shooters, accurate, ccw or otherwise..
Best of luck, but you are right in that
in seeing, and trying to remember the take-down and get "the feel" down, and right, and easy, with a 1911, first out of the gate, so to speak.. (but the manual does explain it well IMO)
Enjoy, your choice
Ls