I support what's been suggested so far. The only question then is how to select the members. One option would be the Citizen-Liason selects, another would be a quick multi-member election of some kind, another would be for the bill to specify.
Personally, I think we can probably mash together a vote approving the party into a vote to select the committee. We run an approval vote, with the options being everyone who volunteers, nay to holding the party, and abstain. If nay gets a majority of those voting, then no party, else the top 3-5 people endorsed by a majority of those voting go onto the committee, breaking ties in order of who volunteered.
If this is an idea people like, then I think we can start collecting volunteers immediately.