GOP presidential hopeful Donald Trump is due to hit the Chicago area on Sept. 12 in search of big campaign cash. But it's unclear how much of a response the event will get from the Republican business establishment here.

Invites that went out overnight say Trump will star at a luncheon at the Bolingbrook Golf Club; tickets will go for as much as $250,000 a couple. A mere ticket (with no photo op) will cost $1,000. Proceeds will go to Trump Victory, which will share the take with the Republican National Committee and some state parties.

What's interesting about the invite is the lack of big local names that usually show up in the weeks before a presidential election.

Of the six hosts listed, three are national figures, including RNC Chairman Reince Priebus. Of the other three, one is Trump's Indiana finance co-chair and two are from Illinois: businessman Ron Gidwitz and Bolingbrook Mayor Roger Claar.

One source close to the event confirmed that some frequent givers are taking a pass. But sponsors still are hoping to raise multiple millions of dollars.

The Trump campaign did not respond to an email as to whether the New York businessman has anything else on his schedule. The event will be his second stop in the Chicago area since his spring event at the University of Illinois at Chicago that ended up being canceled amid raucous protests. The second event, in July, was at the downtown Trump Tower.

Related: In Chicago, Trump sends GOP donors spinning