From my experience on several 23’ (Legend) inlines, don’t waste your time on making a curve inside the trailer for the front ramp door. My 137” four strokes could never make that curve w/o stopping and manipulating the front or rear of the sled.
I found the best set up was to run separate guides for each sled. On the rear ramp I cut up old hyfax for the tracks to grip on.
The third (last) photo is Caliber’s trailer with close to $1,000 of their track.