Hello
I want to introduce model of garbage truck KO427 based on Kamaz in 1-35 scale.
There are no stock scale model so I did it by my self. I used model of Kamaz by Zvezda (#3650) but only frame, cabin and wheels.
Hydraulic line is copper wire, rear fenders are tinplate from tube, pigments from MIG and Vallejo.
Next is main part of model. I found drawings in web and broken down into steps. Garbage box body and pressing system made from plastic cards and plastic rulers. Waste collection tank is tinplate from tube.
Lifting system is plastic and tinplate. Hydraulic line is copper wire. Rear lights is clear plastic from ruler
... hydraulic oil tank is tinplate, hydraulic line is copper wire and paperclip
... than i made some additional details from wooden sticks, old brush. bottles from MENG.
in the end some black and brown pigments and fixer. just a little because garbage truck is not so dirty .
thanks for attention and sorry for mistakes. good luck 
Vladimir