Maze design needed

Hello, I need some mazes to be designed. Three general concepts are to be used: 1. Door mazes: like < [login to view URL] > are mazes with doors that moves in a specific direction when you pass over a certain point. 2. Tunnel mazes: like < [login to view URL] > are mazes with dead ends but with path to cross between them. 3. Interactive tunnel mazes: like < [login to view URL] > are mazes with dead ends with paths to cross them that became active when you pass over a certain point. Of each i will need: - 6 5x8 mazes; - 24 10x15 mazes; - 6 20x30 mazes. So in total I will need 108 mazes. They need to be made with increasing steps of difficulty. A method of calculating difficulty could be the numbers of steps needed to reach the end of the maze. The final design can be in any format you prefer, you can even design it on paper and then send me the scans. Each maze must have only one possible path and obviously for each maze I will need the solution. If you ever done this before please state so in the PM with some samples. Regards