I visited deosai last year in July.
climb from skardu to deosai will be easy,as there isn't any major obsticle on the way.it's just a gradual climb.
Bara pani has a hanging bridge.and govt. is planning to make a concrete bridge over it.So in either case crossing it would be an issue.
kala pani, the water flow was quite fast last year and a local told me that a jimny got stuck in it.water level was between 2-2.5 ft as mentioned by oklodhi.
Sir g.how r u ??we met at sheaosar lake.Remeber the guy with fishing rods??..:),u crossed kala pani in front of me, and didn't seemed that range rover was struggling through it,but i guess ander ka haal tou ap hi jante hein..