The truck's payload capacity (1/2 ton, etc.) has nothing to do with towing capacity. I recently researched a truck to tow my 3200 and it's confusing to figure out. The important specs are the GCWR and tongue weight.
GCWR is the max combined weight of truck+trailer+boat+all contents, including passengers. It varies even between different versions of the same model. You have to check the placard inside the driver door to be sure.
Once you have a truck with a high enough GCWR for your boat and trailer, you need to make sure your towing ball, mount, and receiver are up to the task. Those have limits as well.
I rented a GMC 3500HD from Enterprise for $150/day. So much less hassle than owning a big truck I would only use twice per year. If I win the lottery though, I'm buying one as a daily driver because it was amazing!
1994 Maxum 3200 SCR & 2019 Starweld Victory 16 DC
Dream boats: Prestige 420S, Cruisers 46 Cantius, Princess V50, Princess X95, Mangusta Gransport 54 (In that order