They won't let you use parts you have. They will only use their own. I liked them but found out they're pretty expensive.
They can give you a quote online, as it may vary on the make and model of the vehicle. All you need to do is go to their website and go to the quote section and answer a few short questions along with your email address and they usually respond same or next day and will be quoted within 48 hrs of initial email.
Thanks! Your answer is awaiting moderation.