You may be able to piece something together using ies files. I couldn’t find a rope version, but it looks like Phillips has a few uninterrupted straight options that you could potentially piece together.
http://www.ledalite.com/resource-centre/downloads?product=879
The LBGQxx series might be useful.
I’d like to hear how you make out and what ends up working for you. Good luck.
Cheers
Andrew