aww - this sounds nice! i would say yes, but:
1. one of my pups is really slow, and likes to pull the hair of other pups.
2. my other pup is very big, and thinks chasing small dogs (and rolling them) is awesome. consequently, small dogs are not a fan of this.
that said! may i make a suggestion that you NOT convene at red bud for this? looking at the dogs that have confirmed so far, you probably don't want to take them to an off-leash dog park with larger dogs. although i have never seen anything happen to smaller dogs there, i have heard scary stories and would hate to have anything happen to your lovely doggles. some of the larger, hunting breeds mistake the smaller dogs for prey.
the riverside park is a little more geared to small dogs and even has a small dog only area if needed.
aforementioned pups:
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"I suspect what we're doing is performance art, but I'm not going to tell the public that."
-- Del Close