I always liked the ThrustPro dryer. I think they give a very good dry for the HP it has. Its down side is that they do require some monthly maintenance, they can be damaged if they are backed into and some of todays trucks are so tall and square at the front that they could bump into the follower if they approach it too fast. As with all drying, chemistry is as important as HP. The Softgloss is still an excellent friction machine IMO even though its design is decades old and the Radius is a capable inverted "L" machine which requires minimal maintenance. The Radius will also be one of the more affordable touch free machines. And of course chemistry is very important in any touch free washing. You should also start thinking about if your wash will be ran on all fresh water or reclaim water. Good Luck.