Honestly, I think your best bet is appealing to the Admins to add a small list of Freelancer usable cruisers in 4.85, but I wouldn't get your hopes up.
As misleading as those infocards are, I really don't think Freelancers in cruisers is a good idea. I could easily see Liberty banning Freelancers, along with mercs, if they started drifting around NY in cruisers. You know their paranoia with quasi-legal pilots.:P
Not to say it wouldn't make for some good RP in the right hands, I just don't think it would work very well.