While the seller is lacking in morals without doubt
Weather the arm is genuine or not is IMHO irrelevant , Original or copy really who gives continental
Back in the day they were a cool addition and to this day to us who remember them they are still a cool part . $1000.00, US if hes happy paying that good on him .The reality is in 10 yrs time all this stuff original or copies will be worth five eighths of fork all, when silly old forks like us have relived the past and are more concerned where were going to live out are days than about old bikes the lot will be worth fork all
do you really think the kids will want it
If its a copy its less likely to be bent , cracked, or plain worn out so its probably a better option
Im off to look at retirement brochures