Thanks ya'll
I ended up ordering a Tidewater TBT3700D2 tandem axel- disc brakes -2 bunk (float-on) it's rated for 3700 pounds size is ST175X80D13C

$2387.00-Me thinks that's a steal!

1920lbs for hull
425lbs for dry motor
300lbs of fuel
300lbs addition of closed transom and bracket
170lbs Batteries tackle leaning post anchor

3115lbs if the hull is 1900lbs, so I have 585lbs of fudge factor, but i'm safer than the single axel rustbucket it came with!!