1- Single wall alloy wheels with machined braking surfaces. The spokes aren't stainless steel. I think the rear spacing is 130mm, but I will check. The wheel of my Catrike Trail fits with no problem and it has a standard 9 speed cassette.
2 - The Citta logo seems to be paint not a decal, that or it is under clear coat.
3 - Yes there are two kickstand mounts, one in the regular place, behind the BB bracket and on on the chainstay near the rear axle.
4 - I need to check, but I think so.
5 - Fork is threadless, but I guess you could still use a quill type stem with hinge like some folders use.