I know it differs with shops. A BOF I remember from shop days would definitely be pulled straight in something minor like that. A uni-body construction is alot more finicky, I don't think I shop that would just pull that crush structure out would survive as their work would easily fail in another incident, though cost-cutting is rampant and I'm sure it happens with more shady shops.
If it went back into the apron and crush structure than, yeah, that would warrant more labor cost. I have no idea if 800 would be reasonable being that I haven't dealt with anything resembling a Fiesta's unibody structure.
For parts this is my primary source and it is what the shops use as well.
http://www.car-part.com/. Helpful so you know where and how much the parts are in case of anything. Once I had a 90s Accord that needed the same sort of repair and I specifically asked for a certain piece to be replaced that likely had been damaged as well. At first insurance told me they couldn't find it, printed it out on carparts after confirming with yard, and what do you know they didn't see that yard. (In this case it was pulled because otherwise labor would have scraped the car and being that I had just changed internals, that power and money would have been for nothing)
Since you're paying yourself it is another source to simply find parts since I understand and would encourage to complete the parts replacement yourself.