Raised crypt is finished.
....
And as I said already, toggle Fade geometry in the toolset to get rid of the grid - its purpose is only to help to build the raised terrain, its not visible in game (texture comes from Sen's Mines and Caves tileset but its included within files so it works standalone).
Okay, I found out the grid is visible under certain environment settings so I invented a new and (hopefully) better way to do this. Im abusing a bug/feature of the tiledefault animation where this animation is rendered in toolset but, afaik, not ingame. However, this means there is no longer any way to get rid of the grid in toolset. But, well is it really needed?
LINK for hak containing compiled models
if you somehow find the grid visible ingame let me know.