Hardest LSAT practice problem ever, if you can solve this you can solve anythint

Jonnie is making a wall. His wall is made out of eighteen types of bricks of three varying colors- red, blue, and green- and six varying lengths- 1x5, 3x5 5x7, 7x8, 10x12, 20x30. The bricks can be laid vertically of horizontally. The wall must be constructed as follows:

A vertical red 10x12 brick must be between two horizontal 5x7 green bricks, or two vertical 1x5 red bricks, or one of each.

A blue brick may not be stacked on top of a horizontal brick bigger than 3x5 unless it is under another blue brick.

There cannot be three vertical bricks in a row. If horizontal bricks are stacked, they must be in decreasing size.

There must be more red bricks than blue bricks on the wall. If there are more than double the amount of red bricks than blue bricks, the number of green bricks and red bricks must be equal.

If a vertical red brick of size 1x5 is at the bottom of the wall, which of the following bricks may NOT be exactly five bricks above it? A) A vertical green brick of size 20x30 B) A horizontal green brick of size 20x30 C) A red brick of size 1x5 D) Any blue brick

If this gets a good response I'll post the rest of the questions and the answer!