As a rough outline of a price: $300 if you don't need to replace a fender bib, fender supports, any trim pieces, lighting or accessories. Oh, and if it is a plain, bone-stock color with no custom paintwork.
The best bet is to call your local dealer and have them match the exact pieces you need. Here is a link to the harley dealer locator:
... Give hem a call in the morning tomorrow and they will know exactly what you need. When you call, ask to talk with parts and service. Anyone else would just be wasting your time.
Let me know in feedback what the cost turns out to be if you don't mind.
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