In my experience, when a contractor doesn't want to break the price down by unit, it's usually for a reason. I worked for a company that sold soffit and trim coil. As a salesman, we were told to negotiate on the total price, not on itemized products, that way, you can put more profit in the deal. Good for the contractor, bad for the customer.
As far as pricing, these are the costs in my area. I'm sure it's a little different where you are but close enough for estimate purposes.
Exterior steel doors should cost 2-250 for the door, maybe another 100 bucks to install.
Gutter replacement should run $5-7/ foot. If you're going to repair them, you might as well replace them with seamless so you don't have to worry about it in the future.
If the wood on the fascia needs to be replaced, that should run roughly $3/foot installed. If you wrap the fascia in aluminum, that will cost you between 5 and 8 bucks per foot installed.
Without knowing how many feet of gutters, ect I couldn't tell you if 1200 is a good price. If they're interior doors and just minor repairs, I'd say 1200 is probably high. If you need 2 exterior doors, getting a long stretch of gutters replaced, and several screens, 1200 could be low.