I'm not. This may sound weird, but if it comes down to it and the pond isn't ready yet, I have a 7x7x2.5 hottub with clean fresh rain water in it that we haven't used in years. There's algea and small water bugs in it so it's safe, so I'll put a few of the fish in there for about a month or so if I absolutely have to. Hopefully this is all times correctly though.
And yes wiggles I know, thats why I've decided to just wing it lol it won't be any set shape or size, just big and natural.