wrestling mats/ grappling mats
Hey man try resilite.com they have refurbished mats that are more expensive but very high quality. Also you might be able to score some off ebay or craigs list. A thing to try also is google WTS wrestling/grappling mats. See what turns up and you can get lucky. I scored a 15x15 foot reslite mat off craigslist for 200 bucks!!!!!
best of luck