Iggy, I've got faith in you, I'm quite sure you can do it on your own. There's not much to these saws, a couple of bearings and pivot points. Do the reverse build method, it will keep you straightened out and going in the right direction. Do you intend to grease the bearings, or, do you intend to replace them. The original bearings are sealed bearings, they should not require any grease. But, a lot of DW saw owners swear by it, they say that the grease makes all the difference. So, who am I to disagree with them, I don't own a DW saw. I have worked on a couple of them in the past, that's how I know it's not that big of a job to do a rebuild. It will be a good thing to learn how to do, you never know when you will need to rebuild another one.
Len