This is an issue i've been looking at for 3 years or so.-Altering my gearing.
I have now solved it : at least as far as getting a 30 tooth front pulley and -wait for it - a 68 tooth rear pulley.
'RC Components' can make you a rear pulley without too much trouble,but with a fair cost.
I had a 68 tooth;1 inch wide pulley made for my 08 Softail.Cost me about $500 plus about $30 for the spacer that makes everything all line up. I cant imagine it would be any different to make a pulley your size.
They're in Bowling Green-Kentucky. Phone 888-721-6495