I reckon you've got yourself a bargain, worth a bid for sure even if you did it by mistake. I'd have it for that money but I'm too far away.
Stock standard is about 60bhp and extra power is hard to come by. With an end can maybe 62bhp but I doubt much more. Not a million miles from what seller claims and the money is dead right so I wouldn't complain.

Total bargain in my opinion.