inTech is the premier enclosed aluminum trailer brand. Order from dealer stock or its 6 months for a custom build. Our local dealer, Tim Spears' Superior Trailer in Burlington NC and Richmond VA is great to work with.
.
inTech offers a Rail Ryder prep package option, or you can get a finished installation direct from RR. He was displaying at Barrett-Jackson, says his system adds $12,750 to the trailer. Fantastic for hauling, but if you work out of your trailer at the track it might be in the way. I'd love to see the Rail Ryder in an inTech trailer at the reduced height of the Mission unit. That would be slick.
.
In open trailers,
futuratrailers.com has a unique open all-aluminum tilt-bed trailer that tilts from the ball instead of from the centerline of the axle... low approach angle for easy drive-on, raise the bed using the wireless remote, then hop out. Or, use the optional recovery winch.
$10,000 plus options (stone guard, winch, tire rack, tie downs, spare tire) from
superior-trailer.com.