Bruce--
Thanks....it is a lovely model, and the detail that was supplied is amazing....especially the rear of the tractor unit. I do wish that Meccano had spent a little bit more and supplied dual rear wheels....would have really looked nice.
Regarding the transformer...there are no tabs or mounting elements that I can see to secure it to the bed of the trailer, but I did buy this used and the transformer was already assembled when I got it, and I do not have the instruction sheet for it. Now I just need to find its cousin....the Mighty Antar transporter with transformer! If anyone knows of a nice one, please let me know........
Terry