70-72 Duster parts wanted

I have decent D.C. valve covers b.b. and 15x8.5 sbp centerlines but no 15x3 .The 8.5 wheels were on the rear of both my 68 Barracuda and 74 Dart Sport (sbp 8 3/4)
Thanks for replying. How much for the centerlines and valve covers?
Where are you located?
And what condition are the wheels and valve covers? Thanks, Mike