Hi, and thanks, Thantos!
I don't yet have a definite number of tiles planned. I was just thinking of doing some and seeing what seems to be enough. There won't be as many as in most Hirst mold -styled 3d-dungeons, however, as I'm using a thing I've dubbed "the spotlight method". This essentially means that the heroes will only perceive their closest surroundings, and that the terrain behind them actually disappears when they move on. This has two basic advantages: 1) You will be able to re-use many of your tiles as the group moves on, and don't need a monstrous arsenal of tiles, 2) If the adventurers are not careful, they might actually get lost in the larger dungeons! Mapping would be adviced, especially since my maps will not follow the traditional Hero Quest board pattern (although the old quests will be transferred).
I've got four of those 8x3 tunnel pieces ready. Might do a half dozen more at some point to make sure there's enough. One big square base you see as the floor of the overview. One elevated section (11x9 in size, 3 + 2 in height). One porticulis-slash-bridge section (10x2 in size, 5 in height), four stairways of different sizes. One smaller elevated section with stairs embedded to it (you'll see it in the next set of pictures). These are all self-made. In addition, various smaller walls, doors, gates, tombstones, mausoleums, crates, tables, shelves, kegs, barrels and whatnot from ready kits, including original Hero Quest.
I'm now working with a second large square base (similar to the one you already saw), and a larger elevated plateau (19x9 in size, 5 + 3 in height). It will bring the dungeon to the maximum heigh of 8 inches, which is supposed to be the "ground level" (most parts of the dungeon of course planned to happen underground). The color scheme will alter a bit here. The lower parts are quite dark, as they are meant to represent dim dungeons. The highest portion will be lighter gray, and may have some green growth in it. It's still underway, so I don't know how I manage to pull it off!
For the purposes of the planned "Necropolis campaign" of Mordheim, there will of course need to be a certain amount of ready terrain. I think I will make 3 or 4 of those big square boards total, and then see how many independent walls and elevated sections I still need to sufficiently fill the area. There won't likely be ruined buildings that are rather canon in Mordheim, but there will likely be some ruined walls, pillars, mausoleums and towers.
Here's some more shots, showing the connection between platforms. It neatly continues from the last image. The Dwarf and Elf have sprung an alert, and now the skeletons are massing to stop them!
An alert has been made and skeletons are rising from the graves!Closer look of (an example of) joining the boardsDwarf and Elf of the previous picture set would be just under the bottom stairs here