thanks, you all pretty much said what I thought. I probably won't lose anything if we bust it out, but won't make anything either.
The mulch price came from he guy doing it before. Looks like they're probably going to keep the job as I hesitated when the mulch price came up and I asked the guy to give me a day to think about it. They look like a legitimate large company. Can't understand how they are so cheap. Only thing I can think of is they have illegal labor like so many others.
The rest of the bid seemed ok, but not numbers where you say I have to have this job.