Bugsy,
I think most of us tinkers get our actions 'in the white' by de-blueing and polishing an older field grade gun. Seems to be fairly common fate for Lefever Gs, Fox SWs and others. Part of the reason is financial, for example: the only white action I see for sale right now is the Sabatti O/U from Galazan, and for about 1/2 the price I got a Browning SP trap gun to use for a project.