Well, it appears he is looking for a matching set with a 6 speed freewheel rear. Maybe you can look on Ebay and find the front wheel that matches your existing rear wheel.
Or...
Get a set of 7 speed indexing shifters and go to a new wheelset with a 7 speed rear cassette.
Last edited by Jicafold; 05-05-15 at 07:26 PM.