Newbie-Hi-Love this site! Found it when I was researching a vtg tee for a vtg friend

Good thing I did as I found this tee few days later when tee shopping w/ dtr at Goodwill. It is in MINT condition IMO. Surely someone would have trimmed those surging strings if they wore it--surely! Am I aiming too high at $300? Please let me know if you think there may be issue with authenticity, I wouldn't want to misrepresent.
https://www.ebay.com/itm/323046705563