Changing thermostat housing on electric choke??

[ellisjay2]

The rivets on my electric choke housing are missing and now will not stay in proper adjustment due to winter arriving. Ive found a website that sells quadrajet carb parts and will order thermostat housing kit and wire. Is it simple to replace with carb on or will carb have to be removed???? I have to get under the hood on cold starts to lift up choke plate, move it back and forth until mixture and temp equalize, then it will stay open on its own, Im not sure who removed the rivet screws, but they had a zip tie around the thermo cover to hold in place.....










http://quadrajetparts.com/images/GHP-Q1211-W600.gif