Hi Oliver,
For Illinois, you have two choices as described in the link below if the vehicle is not currently titled in another state:
http://www.cyberdriveillinois.com/de...ustom_rod.html
Basically, from what I can tell, it will cost you whatever your sales receipt(s) indicate times the sales tax rate for the city you register it in, so expect 6-8K to title and register a new RF.
Regards,
Al