Thinking about installing the DK oil cooler / filter relocation kit. I trailer the Tri sometimes and am wondering about the clearance of the relocated filter as the trike transions from the ramp to the trailer floor. I have a 6' trailer, so the door is 6 " shorter that the door on a normal 6.5' height enclosed trailer. I always use a 2x6 under the ramp door and a 3/4" board under the folding flap to help with the clearance. On a level surface, there is clearance without me adding the boards, but not much. Wondering what anyone who does this can tell me. Thanks.