My 88 200 is about the same size (20' 9") but lighter with a narrower beam (2680 lbs, 7'8" beam). It had the 4.3 with a 4 bbl Quadrajet. It performs well but for water sports you'd want more. And, I'd say go at least with the 5.7.
Mine is slower than it should be probably because of both age and layers of bottom paint that add weight and drag. The iron 4.3 is an excellent engine, compact in size, durable and inexpensive to repair. And I might add, stands up to an overheat pretty well
Now that back end of the H-210, I'd have an issue with. I can imagine how tight it would have been to get in there and replace the exhaust flappers in the Y pipe like I did after the overheat. You'd most likely have to remove the exhaust manifold on the starboard side to get the starter out (had to replace that too, got full of salt water). No reason why it has to be built that way. I'd find a way to cut out the glass that the battery access doors fit into and fab up thick aluminum supports that are removable to support the fiberglass above that. Imagine having to re-engineer your boat just so you can fix it. For shame Four Winns.......