i would like to see something for the modeller looking to create a quarry or cement works, or even a opencast loading pad. say 1970s mid 1980s. A.e.c 690 dump truck (jcb 423 428 four wheeld loading shovel 1973 to 75 (jcb 806 807 808 excavator 1973 to75) jcb 110 110b tracked loaders) (hymac 370 backhoe loader or 580d 580c excavator. wouldn't mind a 1/76 poclain 300 or 350 would look great in the open cast i plan to build on my layout.