1) Took about about a month from
VIN to driveway in Calgary
2) I did not book a 2020, but you will indeed be paying the extra, no one (that I have read) was able to get it at lower price.
3) You can the the OEM hitch from Kia, I had it installed.
4) They do not offer the 7-pin in Canada, just the 4-pin install. I cant say it it's prewired for 7 as opposed to 4, but I really don't know. However, my dealer paid a third party to install a 7-pin and a brake controller for me before it even arrived, but there was a mix up in the parts. In fact I finally got it done today (had to wait for the right parts), just picked it up a couple hours ago, and it turned out great. The brake controller was not mounted inside on my instructions. The quick connect cable for the controller is under steering wheel, and when I need to use it (5% of the time) I can plug in and use, and when not (95% of the time), I can put it in the glove box and tuck the cable away.
I only recently found out about wireless/bluetooth brake controllers, if I had known (or researched more), I probably would have went that way with it, but still happy with it. Least it can't be stolen like the wireless ones.
Just curious, but I assume you ordered a SX-L (Non Nightsly?). I know there is a huge delay on them right now for Canada (and maybe even USA)
Hope this helps.
And congrats.