Auto Populating Option Sets and Lookup Field Based On A Lookup Record.

See This  For some background information. I am trying to do the same except im trying to auto populate a lookup field and optionset fields based on the details in a lookuprecord selected.

So i am trying to bring accross a lookfield field and optionset field, from a lookup field when it is selected.

function getVehicleDetails()
{
    var lookUpObjectValue = Xrm.Page.getAttribute("c2_vehicle").getValue();
    if ((lookUpObjectValue != null))
    {
        var lookuptextvalue = lookUpObjectValue[0].name;
        var lookupid = lookUpObjectValue[0].id;
        //alert(lookupid);

 
    var serverUrl = Xrm.Page.context.getServerUrl();
 
    //The XRM OData end-point
    var ODATA_ENDPOINT = "/XRMServices/2011/OrganizationData.svc";
    var odataSetName = "c2_vehicleSet";
    var odataSelect = serverUrl + ODATA_ENDPOINT + "/" + odataSetName + "(guid'" + lookupid + "')";
    //alert(odataSelect);
    $.ajax({
        type: "GET",
        contentType: "application/json; charset=utf-8",
        datatype: "json",
        url: odataSelect,
        beforeSend: function (XMLHttpRequest) { XMLHttpRequest.setRequestHeader("Accept", "application/json"); },
        success: function (data, textStatus, XmlHttpRequest) {
            var result_contact= data.d;
            //alert(result_contact.AccountNumber);
                        //replace the fields with the fields on your entity
						Xrm.Page.getAttribute("c2_vehiclemake").setValue(result_contact.c2_vehiclemake);
						Xrm.Page.getAttribute("c2_enginetype").setValue(result_contact.c2_enginetype);

                      
        },
        error: function (XmlHttpRequest, textStatus, errorThrown) { alert('OData Select Failed: ' + odataSelect); }
    });
    }
   }

...

c2_vehiclemake is a lookupfield
and c2_enginetype is an optionset.
But it is not working as it is different to a normal  text field.

I have tried this however, it doesent work.

               var make = result_contact.c2_VehicleMake;
            
            if(make != null) {
            var finalMakeID = make[0].id;
            var finalMakeName = make[0].name;
            var finalMakeType = make[0].entityType;

               var value = new Array();
                value[0] = new Object();
                value[0].id = finalMakeID;
                value[0].name = finalMakeName;
                value[0].entityType = finalMakeType;

        }
                        Xrm.Page.getAttribute("c2_vehiclemake").setValue(value);