Not my first rodeo, but my first pinball restoration
Here's where i've found CENTAUR parts available:
http://www.twistedpins.com/products/stencil_kits/?ProductID=54
http://www.bestofpinball.de/catalog/index.php/cPath/135_213_318
http://www.marcospecialties.com/pinball-parts/10
http://www.pinballdecals.com/PartsByGamePages/Centaur_Page.html
http://www.pinballpal.com/products/stencil/#125-0115
http://bayareaamusements.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=GS-476
http://mad-amusements.com/category.php?id_category=141
http://www.lakesidepinballparts.com/playfield.html
http://www.pbresource.com/posts.html
http://www.pbresource.com/rollover.htm
http://www.pbresource.com/pfbumper.htm
http://www.pbresource.com/pfbumpb.htm
http://www.pbresource.com/rollobut.htm
http://www.pbresource.com/pfswitch.htm