CLOwy
Sorry no idea about the green tractor but I think the orange road roller might be a Kemlow with the roof missing based on the holes on the top of the bodywork which look to be for roof supports.
With regard to my unknown MG model I have now received the job lot it was part of

It was very dusty and is solid red in colour.
I think it is a 1/24 white metal kit as it is very heavy and is brush painted. Underneath it is quite detailed but overall the finish is fairly crude with traces of glue and poor alignment of the panels. There is no makers name at all - I think there is a company called Wills finecast who have made this type of kit so it might be one of their models. Photo of job lot below - can you name the model in yellow with the orange tilt?
Sebastian
