It'd be cheaper to switch to a chain unless you can find a used belt.
17t Front 50t rear is roughly the same ratio as the belt and pulleys.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1174239333All the chain info ^
When you change the cam chain you may consider also changing the rear guide(the one that bolts onto the tensioner housing) and/or order a modified tensioner assembly here from Verslagen1. The peace of mind is well worth the money.