Chaining with both jquery and underscore functions simultaneously without an underscore context object

MixedJqueryUnderscoreChaining.js

  // ...
  unQuery = function (fn) {
    //Allows the usual context-style chaining
    //but between all libraries.
    return compose(flip(apply(fn)),arrayWrap);
  },
  // ...
   $.fn.options = function (list) {
      //PURPOSE:  This plugin provides a useful
      //          abstraction for populating <select>
      //          lists when given an array of choices.

      var $select  = this,
          markup   = '<option value="{{v}}">{{v}}</option>',
          option   = template(markup),
          empty    = unQuery($.fn.empty),
          css      = unQuery($.fn.css),
          appendTo = proxy($.fn.append);
      
      return chain(
        K($select),
        empty(),      
        K(list),
        map(function (item) {
          return option({
            v: item
          })
        }),
        reduce(concat),
        appendTo($select),
        css('width',function (index,old) {          
          //For IE 9 only bug...thanks microsoft
          //NOTE: 260px is arbitrary.
          return old > 260 ? old : 260;
        })
      )();
    };
    // ...