Instead of buying a new wheel now, you can try to remove the current F/w and throw a 2-3mm ($1.00)BB spacer behind a new 16t single speed freewheel (20.00)and roll the small ring on the front in it's current inboard position and atach it with bmx chainring bolts (5.00) with a fat BMX chain ($8.00)your chainline should be solid. I have a bianchi with this setup on it for years with absolutely no problems.