Just removed from my 2015 rc390, nearly new.
Same as this one:
https://store.hardracing.com/ix005003-aftermarket-aluminum-fairing-stay-15-16-ktm-rc-390.html
$115 SHIPPED in USA.
Paypal / Venmo ok
first buy a sae--battery cable like this (same one used to hook up a Battery Tender)
https://www.amazon.com/Battery-Tender-081-0069-6-Terminal-Disconnect/dp/B000NCOKZQ/ref=sr_1_4?s=automotive&ie=UTF8&qid=1512572450&sr=1-4&keywords=battery+tender+cables
Then buy this...