I believe it will require 1 (one) 140 ohm resistor. Brian... what is your opinion as to whether this single resistor would work instead of the multiple resistor pack?

I looked around last night and saw where a SMT manufacturer/supply company was in Austin. It looks easy enough to spec out what anything you need but probably available only in quantities. Of course, if a standard resistor with leads could be fitted, those would be available anywhere.