Thanks everyone! nteam, fitness surely won't be a problem. So Krma-Planika-Triglav. On weather we're on the same page. Rain wouldn't be a problem anyway, lightning could be more tricky.
dprapr, regarding SVK... I don't need it. I read somewhere there's a route to Triglav where you walk on wire for a while and there's a drop below. There SVK would probably be needed, because you never know what can happen. I doubt the Krma-Planika-Triglav route has that wire anywhere. Whether the info about walking on wire is true, I don't know, because you read all sorts on the net.
iUnknown, fitness doesn't worry me. I'm skinny but endurance and fitness are great, so no need to adjust pace for me. And yes, great info about early start, that's my thing. If you plan something and I could join, I'd kindly ask you to message me a day before in PM, so we can arrange. Thanks in advance.
Thanks everyone for the help.