replaced my front fender with one from a hard top car,
will the shaker still fit Dan 69 Camaro

Yes...you will probably have to drill a couple holes though.

No new drilling, unless you used the coupe inner fender too. The shaker attaches to the rad support (two bolts), one bolt through the flat of the inner fender, and one bolt where the fender extension, inner fender, and fender all meet.