The late Howard Edmunds from Hastings, Michigan, had a 53 Kaiser that was professionally converted into an El-Camino style pickup. The work, according to him, was completed in the early 60s by a firm in Detroit whose name now escapes me.
He also had a 49 Frazer Traveler that I ended up with. It had a Frazer serial number tag and Kaiser trim and body tags. Both he and I suspected someone many years ago switched bodies on a frame that was probably wrecked. A fellow KFer still has the front sheet metal and much of the driveline is now in my 50 Traveler.
Howard was a well known Kaiser collector. At the time of his passing he has about 100 cars. All ran and drove to where they sat but deteriorated over the years to being parts cars. A 50 Frazer convertible was rescued and restored by another club member.