I have a 91' mitsubishi mighty max, and got a deal on a 69'-71' 15.5ft Rinkerbuilt tri-hull with a 67' Johnson 80hp outboard on it. I pulled it with no problem @ 55-60mph from the guy's place I bought it from which was about15-20 miles away. <br />Will there be a problem or is it wise to attempt launching and retreiving with this set-up? <br /><br />The wheels on the trailer are 13" or 14".<br />And are the wheel/tire combos from wal-mart a good choice?