I can't provide any answers to your questions but I did want to highlight one thing. A kickstand would be nice. It is really inelegant to just drop your bike on the ground when there isn't something to lean against. But I've never seen a kickstand as viable. I think that with all the kickstands you highlight, when using a loaded touring bike, you also need to lock down the front brake. Usually there is a strap that pulls the brake lever in. If I have to get out a kickstand, get out a strap and basically setup the bike then it is too much hassle. Maybe not for you but I wanted you to be aware of what these kickstands entail.