What would you charge to remove these ovens and this paint booth?

http://s1058.photobucket.com/albums/...paint%20booth/

So I got a call to remove 4 industrial ovens and a paint booth from a commercial site. The ovens are about 12 feet wide, ten feet tall, and 14 feet deep. (Guessing here.) They are entirely made of steel or galvanized. If you look at the pics from the backs they have some sort of large motors attached to the back of each one.



In addition, there is a structure around the ovens that is entirely made of plywood and 2x4's that I must demo.

Lastly, there is a paint booth that must be removed. Again guessing at dimensions, but I want to say it is 10 feet tall by 12 feet wide by 22 feet long. Again entirely made of metal with a bit of glass thrown in.

All electrical connections will be severed by their electrician on site, so I don't have to do that. I have access to a scissor lift, I'll have to check to see if it reaches to a sufficient height to take down the walls around the ovens.

The customer has indicated that they got pricing a couple of years ago on having these items removed.

I am seeing several tons of metal here. Just wondering what kind of pitfalls I may run in to:
Can I do this without pulling permits?
Customer does not believe there is any asbestos present.
I am looking for any and all advice, questions I should ask, and comments. Help! The bid is due tomorrow!