Agree with Greg. PRD was never really competitive with the other TaG engines and not even sure if it’s still legal. Will also be tough to make it even close with your weight. The PRD was usually run at the lowest minimum class weight compared to the other engines because it was underpowered.
Would also skip on the Extreme Kart. You should be able to pick up a reasonably nice used package with a better known brand. More popular brand names are easier to find parts and tuning advice for so they are almost always a better investment in the long run. Talk to some local kart shops at your local tracks and see what they have for used inventory. Also a good way to strike up a relationship with someone local who can point you in the right direction on chassis setup and getting you spare parts.
But yes, would generally be looking for a 32mm kart at your size. 30/32 would probably also work fine, depends on the manufacturer. Some brands’ 30/32 is stiffer than other brands 32. It depends on materials and geometry as well. But in general, either of those sizes should work.