Wanted: 1970's era Longines TL*series or Omega OTR-2/3/4/5 timing recorder w/ printer

Subject says it all- looking for 1970's era electric printing chronograph timer by Longines or Omega Timing - basically a sports timer with a recording printer included. Existing documentation indicates this would be the era of a Longines TL-2000 series, starting with the TL-2000; other models are 4000 or 5005; or an equivalent Omega OTR-3. Units are for museum display purposes only- they do not need to work, but will hopefully be in cosmetically good condition. Attached is a document describing the use of such equipment for scientific timing for geodetic surveying purposes. Leads to such equipment are appreciated, a finder's fee is available should a suitable unit be located and the purchase of such accomplished. Contact info: Nathan Drummond, Dayton, Ohio, 937-689-6493 drummond93@aol.com