I did not, only because of my previous re-piping of the 66 single to dual master cyl. Should fit right in to your 69 I believe. Not 100% on the fitting sizes.
Yeah I spoke with the folks at doctor diff and they said was modeled after the MOPAR 1973 design that incorporated the Texas shaped PV with the DB all in one piece. It is about an inch taller than the stock DB. The same upgrade model went into my 1988 Jeep.