I have two Jockey box coils, used. They are similar to these So Used SS 5/16 50 ft of tubing.
Most industry suppliers sell them new at over 100 bucks. These could use some new grommets and they are about 2 bucks a piece.
Looking for 60 bucks or best offer. I'd guess shipping is going to be about 15 per coil UPS
Feel free to shoot me some questions, I am leaving town this Saturday for a hiking trip through NC (asheville area) so if you let me know before then I can get them in the mail.