In its quest to legalize sports wagers, Illinois could look to New Jersey, Nevada or any of the other eight states that have already put betting laws on the books.But a new report suggests the Prairie State may also want to look across the Atlantic for help on a framework.The Illinois Economic Policy Institute and the University of Illinois released a report this week concluding a 15 percent tax, the rate currently levied on gambling revenues in the United Kingdom, along with a monitoring fee and licensing fee, may provide …