Jeff,
Got hinges for Acer extansa 4420 maybe i can have a look @ the structure of the bracket , if they are interchangeable will make it 1,500 each .
Hoping the plastic hinge covers were not damaged from the cause of breakage ,i.e impact or wear and tear , in that case will rework on them and give it a fine spray finish matching your laptop skin.
Am suspecting the hinges are made of low cost metal alloy or sometimes steel if my metallurgy classes are anything to go by , for the stainless steel hinges(alloy of chromium & nickel) i do a nice gas weld , the other irons i usually fix them with adhesives and strengthen the joint with copper strands