Is this hard to replace yourself? The switch is broken on the dome like and I think probably the bulb as well, you just hear alot of piece rattling around in there when you try and move the switch
This should be an easy DIY fix if you’re mechaniocally inclined. My tactic for these types of things is to buy the buy the new assembly first. By examining the new assembly, the removal process for the old one becomes obvious. Usually there’ll be a retaiining screw or two, perhaps a clip ot two, and an electrical plug.
If you’re not mechanically inclined and cannot figure it out by examining the new assembly, then any shop should be able to do the job in a few minutes for a very small cost.