Easy job
1. Remove weatherstrip: Plan on replacing it if was glued in place The roof stuff trim comes off very easy . Its held on by tiny sheet metal screws under the weatherstrip. Take your time. If anything takes any amount of pressure to take off, either you still have a screw still in place, or its rusted in place (rare), as you take off the trim, mark them in order, what side they came form. Beleive it or not, the stuff starts looking the same after awhile
Dont bend or crimp any of the trim. Its expense to either replace and expensive for someone to remove kinks or dents
2. Door trim is easy, just a littles hard to get to, but no big deal. Roll down window all the way. Remove inner door panel, rest is self evident
Polish, or have a polisher polish your trim before you reinstall. It will really bring out the looks