I´d like to second a heavy stand for outdoor use. Any sudden moment the wind is able to tip over what you thought would be a stable solution. Best to have a second person / assistant with you. Regarding strobe / light modifier, I´d like to throw in the new broncolor Move pack, it actually is a kind of battery powered "Mini-Scoro", that one combined with a Para 88 is a great combo, too. I´d suggest to work with the different brands to find out what best suits your needs, even far off a local rent facility you should be able to find a way to test things out. Also consider that buying into a strobe system is a decision that will often last much longer than any other purchase.
Cheers,
Ulf