Hello
Please let me know how many pages are on the site. Also what version of PHP were you using before? I ask because modifying PHP files which was using an older version of PHP can result in a lot of work if that script uses many old PHP functions.
I also have more than 10 years of experience with HTML, Javascript, PHP, MySQL, Linux and web development in general. While I have set a deadline of 3 days on my bid, I can start right away. I just like to give myself extra time in case any complications arise even though I don't anticipate any.
Thanks,
Danny