i want to build big amethist tree, ...

i want to build big amethist tree, the trunk should be from stripped spruce logs, spruce stairs for the bend effect and maybe a spruce slab for ending the branch, the leaves should be from amethist block and only from them, then the details on the leaves should be amethist clusters and end rods, the end rods should be pointing either up or down from the leaves, and from some downward rods there should be pruple stained glass panes, but not from all of them, about 20 block tall and 20 block wide each way, something like this: https://www.youtube.com/watch?v=qWmnWl58V6A