1) We haven't seen the trifold in the 2021 Surveyor but have seen them on other brands and did not want the tiny jackknife so we ordered the trifold
2) Also interested in ideas around this
3) I've searched the web and there are a bunch of different options (we have 4 kids also), we are thinking about starting with the plastic ones you can get at most big box stores and see how that goes. Something like:
https://www.walmart.com/ip/Summer-Si...drail/43241937 but we haven't tried this yet. There are some cool ideas out there with using PVC and an L bracket that we might try also.
4) We ordered with the 50 amp and 2nd AC because its cheaper to order it with it than it is to upgrade later so we figured this gives us the most flexibility later.