It will fit fine. If you plug 13/49 and 14/49 into Gearing Commander's calculator you'll see that this change should only move the sprockets 0.14" further apart.
I've had great results and found great prices with JT Sprockets steel sprockets.
Front is JT part # JTF1590.xxSC
Rear is JT part # JTR245/2.xx
(Substitute the desired number of teeth for "xx" above.)
Amazon is a great source for them. Last time I purchased them I paid $14 for the front sprocket, including free Amazon Prime 2-day shipping.