I'm working on a tutorial now that will be out this week that deals with creating a lego car it will be split into two parts both out this week dealing with modeling for beginners (you can probably skip that one) and more advanced bricks screen shot below of one of the bricks we work on

As to substance painter 2 i've been meaning to do somthing with it for a while so i'll put it on the todo list. Personally i use Mari and prefer it.

All the best
David