Unknown 250 GT Lusso(s)

The 11th Annual Ferrari Club of America national meeting took place 30th May-1st June 1973 at the Grosse Point Yacht Club in Michigan. Among the cars displayed were at least five 250 GT Lussos:

1) #4537 of Jim Riff, Chicago/IL
2) #4863 of Art Miller, Jackson/MI, painted silver gray
3) #4971 of Frank Entwistle, Fort Wayne/IN
4) #5859 of Marty Siedentop, Denver/CO, painted silver gray
5) #unknown, red, with Michigan license plates

Here's a photo of the unknown red Lusso, taken by David Seielstad. Can anybody identify this red Lusso photographed in 1973?

Marcel Massini
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Here's a photo showing a silver 250 GT Lusso, photographed 23 August 1984 at the Rancho Canada Golf Club in Carmel Valley/CA. Does anybody know which chassis number this is?
COPYRIGHT MARCEL MASSINI
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Here's a photo showing a red 250 GT Lusso photographed 21 July 1985 during Joe Marchetti's Chicago historic races at Elkhart Lake. Does anybody know which Lusso this is?
COPYRIGHT MARCEL MASSINI
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Here's a photo of a red 250 GT Lusso, photographed May 1974 during the Bugatti-Ferrari Owners Club Switzerland meeting on the Bürgenstock near Lucerne, Switzerland. Plates are French from the Mulhouse region (68 = Departement Le Haut-Rhin). Does anybody know this Lusso?
COPYRIGHT MARCEL MASSINI
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