Bill, I'm sorry you took my message as a slight on the contribution of the American forces to the North African campaign. That was not my intention: I simply wanted to point out that there were no American units in the Desert War. The tide was turned, by Commonwealth forces, at the Second Battle of El Alamein, and Rommel was on the retreat to Tunisia by November 1942.
Just over half the tanks at Alamein were American-built, with half of those being Shermans, their first time in combat. They were painted in the UK standard desert colour, Light Stone.
The Torch landings and subsequent operations, by a mixed US, British and Free French force, took place in Algeria, Morocco and Tunisia, in the coastal agricultural regions protected from the desert by the Atlas mountains. The intention was to press Rommel from two sides, with the British Eight Army pursuing him through Libya and into Tunisia.
The Kasserine Pass defeat was due to poor leadership. Changes in doctrine followed and leaders were removed, and the failure was not repeated.
Back on topic, the LRDG used Ford and Chevrolet trucks and later the Willys Jeep, all American designs though some were built in Canada. There don't seem to be any other LRDG vehicle kits in production at the moment, though Tamiya have done an LRDG Chevrolet truck in the past, and
1/76th scale models of a Jeep and a Chevrolet truck have been issued under Matchbox and Revell labels.