Contact Geoff. A couple of years ago he had a pair of NOS genuine VW front fenders for 74+ std Beetle. He may still have them.
Otherwise, the best in existance is fenders from VW of Mexico. They require some work to fit a 74+ car since they have bumper slots to fit 68-73 cars. These are the fenders I installed on my 75 a couple of years ago.
Get these genuine VW fenders from Antonio:
partsvw@hotmail.com