I've spotted a few Rangers for sale, never got the opportunity to really check one out though. Ones I've seen all seem to be Sleek splashes or using old Sleek molds. As far as the layup, I'd have no idea. I know the Sleeks are layed up very well, it would stand to reason even a reputable 'Bass boat" company that thought enough, and invested enough, to copy from, or use molds of tried and true formulas, they would have laid them up well.
Good luck with it!
Ray