Source for rubber bed mat?

[xmitsu10]

I have searched the board and the web looking for a quality rubber bed mat for my 71 SWB fleetside without success. Anybody have an online source (seller or manufacturer) for a quality bed mat? I am looking for one that covers the complete bed floor and wraps around the wheel wells. I have only found them for later model Chevys. I expect to have to trim the length from a longbed mat but don't want to trim around the wheel wells if possible.

If you got a rubber mat in the back of your 67-72, would you mind sharing the brand name?

Appreciate any help possible.

Mark