I have painted all of my trim so far. You do not need to replace the door handles, as they are perfectly paintable with good prep work. It goes for the trim, mirrors, and bumpers. It's all paintable, just be sure and prep everything well and use FLEX in the paint AND primer or it will flake off. Be sure to get an invoice from the shop doing the paintwork and verify that the FLEX is used and get it in writing. Many shops will say that they will use it and then not add it. Before you know what hit you...the paint is cracking and flaking off. Anyhow...sorry about the tangent. The whole job is a weekend project and the materials will be about $300 and labor is about 8 hours to do it right. I pulled all items to be painted off of the car. This will give the cleanest look and allows even coats. Insist on pulling everything off and keeping the car out of the booth. Most shops will not be happy about it, but it will be very noticeable at the end. I did all of the labor myself and helped spray the parts in my friends shop. It will take several coats over the primer to get rid of the texture on the bumper tops followed by wet sanding and buffing. I used Dupont "Chroma" single-stage paint and used the factory paint codes. The match was not 100% at first however after a month the paint darkened and it looks great. Good luck.
Prospero