I have since early FS2002 an excellent 727 panel that was modified from the 707 panel by Richard Probst and Chris Arrington.  Many of you may be familiar with those names already.  The package I have was put together by Lonny Payne, also well known.  It included a TWA 722.  Anyway my point is that I have been surfing 727 flightdeck pics on airliners.net.  I discovered that there were so many different equipment combos found across the board on 727's that a panel designer has almost infinite flexibility as to what to include in terms of avionics and gauge arraingement.  I have seen pics of 727's operating just 2 vors and adf like the old dc-9's were. They also operated stand alone gps recievers, INS, and quite a few were upgraded with up-to-date FMC's, some single, and some dual.  I am adding the Civa INS system in dual configuration to this specific panel on a center post bitmap I am creating including the rxp WX right in between the INS CDU's just like the real ones would have been.  This panel is FS 2002 but works perfectly in FS9, very nice to fly.  Would probably work with Mike Stones 727 as well. Most of the gauges are .gau or very small XML's.  I don't think the specific package I mentioned is here.  It is on avsim.com. lp727v20.zip.  Anyway, just random musings on a panel I have had a lot of fun both flying and tweaking.