scania: found the cab on ebay, built the chassis, decided to stretch it a bit, tanker: bought the tank on ebay, cut my own chassis rails using the box trailer frame as a guide, but added an inch or so, so i could slide the tank around to get the right look. still need 1 more cab to make the longline, and waiting on a bunch more parts.. but i think it looks good so far..
going for this: scania longline "blue griffon"
and a beall tank trailer: