Carb and Divorced Choke issue

I should have a use choke for that carb if you choose to go that route. If yours is still functional, I would just use it. Any used one you find will have some rust since it is mounted on the exhaust manifold but that usually doesn't keep them from working. If yours has the heat assist feature, make sure the heating element works or the choke may take forever to open all the way. If you post a photo, we can give you an idea if the carb/choke looks stock or not.