Have a look at this ebay shop. They do a good selection of truck floor mats for a good price. ive got a set and they are good quality.
Doesn’t look like he does rubber mats just carpet ones, i wonder if i bought the carpet ones and bought sheet rubber done the cutting myself and set the carpets back. Do you think he’d be any the wiser 
And i know daf do rubber mats but they’re robbing [zb]s