Eastern actually did operate L-1011s - maybe not the 200 models - but they did operate them.
Wikipedia's list of planes they used...
Pitcairn Mailwing with which began operations as Eastern Air Transport Inc.
• Ford Tri-Motor from 1930–1932
• Fokker F-X
• Curtiss Condor from 1930–1934
• Lockheed Electra from 1935–1936
• Douglas DC-2
• Douglas DC-3 from 1936–1953
• Curtiss Commando
• Martin 4-0-4 of which Eastern had the largest fleet with 60 of the type in operation.
• Douglas DC-4
• Convair 440 Metropolitan
• L-1049 Super Constellation from 1951–1968
• Douglas DC-7B from 1953–1966
• Lockheed L-188 Electra beginning 1959
• DC-8-21 beginning in 1960
• DC-8-61/63
• Boeing 720-025
• Boeing 727-25 beginning in 1 February 1964 with Eastern as the launch customer.
• Boeing 727-225 beginning in 1968
• DC-9-14 beginning in February 1965
• DC-9-31
• DC-9-50
• Boeing 747-100 leased from Pan Am before the L-1011s arrived
• Boeing 747-200 NTU
• L-1011-385-1 TriStar beginning in 1972
• Airbus A300B4
• Boeing 757-225 beginning in 1983
• Douglas DC-10
• Lockheed JetStar for corporate use.
On the subject of models of planes not operated by the airline depicted...
Ertl had a nice TWA 737-200 model under their Jet-Trans/Air & Space brands.