I'm no expert on SunSports but I don't believe there is a difference in length. The bottom half of the hull should be identical. There may be minor changes that were made to the hull above the rub rail to accomodate the different windshield and some different vents. Other than that -- it should be very close.
The biggest difference? Wood strings vs. Fiberglass. Do not buy one with the woodstringers unless it is very cheap and you're confident in your ability (and wallet) to fix it. The stringers/floor will eventually need to be replaced.
The wake should be the same behind both of these boats. Good value for the money but consider investing in perfect pass and some money in a ballast system if you want to be serious about it.
Former owner of a 1987 Supra Saltare. Current owner of a Malibu 23LSV.