need 15 foot IC's any suggestions?

I liked the Kimber PB&J IC's very much.
For years, they have gone between my 565 Adcom and my CC-2 Audionics, making great music together.
The monoblocks are being delivered in the morning and I am now in need of a set of 15 foot (could easily use 20 footers) IC's.

Knowing that I like the sound of the PB&J's and that I have done zero cable listening in 10 years...what would any of you suggest on a tight budget?
I need to be able to build or buy the IC's for 70 or less.

We used to build them with the Mogami Microphone cable with great results...anyone doing similar things lately? If I recall, some of you were using CAT5 with decent results also.
I searched in the for sale section, but could not find longer cables in my price range...might be a good filter to add on to that section.