I recently bought new carpet at Lowe's. I install it in my 400TE Javelin. Looks great and went on easy. Make sure you buy the 3M spray on adhesive, a little more expensive but totally worth it. Total cost ran me about $150.00 to do everything.
I got a kit from bass pro that included the glue and good carpet for under $150 it shipped out of dalton. That was cheaper that they sell it for on ebay. Many colors to choose from.