My recommendation is for you to do your research on the installation process and what difficulties or other people experienced or questions asked.
It took me 2 days to install... considering I started 6 pm on a staurday evening, ran out of silicon glue that night.. argh.. and woke up 9 am sunday, and worked on it all day till 8 pm-ish. It took me a long time because of the baking process and because I was VERY worried about damaging my car or any part with the installation. I asked this board and Matt tons of questions, tons of obvious and stupid questions. I rather just be safe then sorry.
My modding experiences are very little: Changing mirrors to m3 mirrors, xenon light interior, silver ring gauges for console. But I did the halos, looks HOT, and I think you can do it.