I weld a 1/4 inch plate to the horizontal tubes and drill holes for the winch plate. the winch sits upright on top instead of upside down on the bottom.this work good on my other Rincon so the same with this one. one pic shows the tow bar attach point. 7/8 square high strength keystock. one pick shows
the old school method of making ur own motorcycle clutch and brake cable ends. I die grind a 3/8 hole in the drum for the cable to set in and don,t have to worry about the cable coming out.

Postimage.org / honda rincon winch mount