RE: Late 80's pattern models
What I do know about Ten Plus was that they imported turn key MK Aurora's (and a few other designs) and they had awesome finishes...but QC could be suspect. The one shown in the photo suffered a structural failure and an autopsy revealed almost no glue in the center section, although they did replace the model for the owner. Another I knew of had the aileron hinges pull out, again...almost no glue.
I bought the Avanti kits from Jim Graham at RC City when they were in Cali, I believe he moved to Tennessee and later offered the LA-1, Conquests, etc. They mave been more common on the West Coast but I never saw any others besides the 3 shown here on the East Coast.
Ram Jet, I just updated my screen name so some of the old gang might remember who I was, but yes always had a soft spot for Lotus cars having grown up an hour from the Glen and going to the F-1 races from the mid 60's through the last one in 1980.