Mark,s occasional kit builds

Hi I'm planning on building this kit. Its a Parkside 4mm BR VEA ex vanwide air brake and FAT19 suspension kit. The problem I am having is the instructions are not that clear especially if your a novice at kit building. I can get my head around the main body but the underneath is a bit complex. If anyone knows where I can get better build instructions would be a help or even better if anyone has built something similar and have pictures of the underneath of the wagon. I have added a picture of the wagon.