Hi I have a 2011 XL1200X Forty Eight Sporster with a peanut tank, (this is great for local riding but for longer journeys it is a nightmare) So I have been told that a Nightster Tank will fit my bike. To buy a new tank from Harley costs the earth, so, I was hoping that there might, just might, be a surplus tank lurking out there somewhere the part number is 61405-07. PM me if you can help. Ta