When you get done, you will have a solid unit that is built the way you want it. If you are mechanically skilled, you can get the chassis in good shape, too. You will come out ahead of buying a new one and it will be better than new.
Whether or not it is worth it depends on how much time you have to spend on it and if you really want to do it.
Single empty-nester in Middle TN, sometimes with a friend or grandchild on board