I dunno anything about pickups, but if towing is going to be an issue, make sure that the suspension and driveline are agressively over rated for the tasks you plan to do.

As a possibility, buy a rebuilt something or a suitable well used near carcus from a used lot and replace the necessary bits.

There are a lot of search engines which can save a lot of time and help you find the right platform. Some of these are carfax.com, edmunds.com (great for new/used reviews), truecar,com, autotrader.com and what became my favorite, cargurus.com

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Toyota is a leader only because their drivers block everyone behind them. Oh what a feeling.