Friends, Romans and Countrymen (and women), lend me your beers....

I have an original 1983 Toyota truck that is all really is all original and runs like a champ! I'm looking for seat covers for this. It has the original bench seat with original vinyl seats. Ultimately I'd like to restore this truck but for now I'm driving it day to day. Can anyone advise where I can find good durable seat covers as this vinyl is making my back sweat and is giving me swampy-ass. Not good.

Any help would be greatly appreciated!

Toyota Paul