For your first question the answer is yes. If you would read what I posted for you in the one thread where you had asked about headlights. In that thread I gave you the entire list from Sylvania, which includes the headlights. I don't know why the link isn't working, but I also copied and pasted the entire list for you as well. All you need to do is read it.
For your second question the answer should be no.
And for the third, if you can install it then go ahead. If it was me then no I can't install things like that. So I would weant it professionally installed.