SuiteScript Item Search

I am new to scripting in NetSuite so please forgive my ignorance, but I am trying to do a scripted search that will return a list of all members in an item kit. To perform the item search in the UI I use the kit name as the criterion and return custom item fields found under the Member List. So it seems like the scripted equivalent would be

var searchName = //string containing name of kit item    var filters = new Array();  filters[0] = new nlobjSearchFilter( 'itemid', null, 'haskeywords', searchName);  var columns = new Array();  columns[0] = new nlobjSearchColumn('custitem_1', 'memberitem');  columns[1] = new nlobjSearchColumn('custitem_1', 'memberitem');  var searchresults = nlapiSearchRecord( 'item', null, filters, columns );