I've found an '04 Nautique SV-211 I'm looking at buying, but had a question about towing. With the trailer and all it will be right at my maximum towing capacity (right around 5000lbs), on a '98 Toyota 4Runner. I'm going to add the correct connector for trailer brakes to work of course, because I have the 3 prong and the trailer is 4. I will be towing it for probably no more than 5-10 minutes and at longest 25 minutes. I was thinking about a transmission cooler for the 4Runner, anyone know a particular one that would work well? Any other suggestions or warnings would be nice to know as well,