Hi,<br />have a choice between trailer for 800 kg. load and for 650 kg load (diff. abt $1000). Boat is 545 kg, engine (40hp Evinrude 1992, be40elenj) not known. Suppose engine to be around 80 kg total weight will be around 625 kg. Too close for comfort for the 600 trailer I guess. Anybody know...