What is the best way to tie down in a snowmobile trailer?

I have a 2014 snopro Hybrid snowmobile trailer. This weekend i’m going to my friends house for a lake day and he wants me to bring my atv and plow to clear an ice rink. I figured it would just be easier to put my 570 in the trailer and not have to deal with removing the trailer to get the atv out of the bed. The problem is that there is no tie down point for the rear of the atv. I can tie the front down to the ski bar but i have nothing to hold the rear in place. My only thought is to run the hook on the strap out the ramp hinge and pinch it in place with the door. I’m sure this will work ok but i’m just trying to see if there are any better ideas. Thanks in advance for any other thoughts on this one.:beer: