Nice Trailer...Good Luck with it
Not knowing how your rear bumper is mounted I would say proceed with caution on the rear bumper bike rack, Do a search here and you will find hours worth of reading on weather this is a good idea or not...Do your homework
As for weather or not a rear bumper bike rack is a good idea or not I would say don't do it because of your rear slide. I also have a rear slide and we find that we open it many times while traveling, When we are stopped at a rest stop it's opened so everyone can fit inside. You also might activate it and hit the bikes and damage something.
You might want to consider a bike rack for the A frame, The Rear bed of your truck or even install a front mount hitch and mount them there.
Good luck and enjoy your TT.... Spring is 2 days away!
Chris
