Im sure you can do better than that.
VPW list them as
ST-2046 Ford 302-5.0L V8, with non stud head, 1.6 ratio Easy Fit bolt-on $629.95
Im sure you can pick up roller rockers for less than that.
VPW sell the following
YT-ST2027 Ford EFI Windsor 5.0/5.8 V8, Mustang, F Series Truck 1.72:1 Ratio (Hyd.) $436.95
These are longer rockers which give the advantage of more valve lift, if that is what you would like.