So I was building a "rounded" building on stilts (using S+ to make things work ish (it isnt the cause of my problem here though))

My end product after building ended up like this http://steamcommunity.com/sharedfiles/filedetails/?id=956631395

It was difficult and quite annoying to build this as the mod does not include any equilateral triangle parts so my floor wouldnt fit right, and then after I found a way around the floor (by having it as a entirely seperate grid attatched to the ground with a pillar) the roof wouldnt fit either i ended up having to use a bunch of the normal roofing pieces because there were now triangle shaped ones I could use (there is one that appears to be the right shape, but it is a "Corner" piece so it is rotated...

In the previous image I had used another set of walls/roof parts to cover it but it normally looks like this (which is absolutely awesome from the inside) http://steamcommunity.com/sharedfiles/filedetails/?id=956631429
http://steamcommunity.com/sharedfiles/filedetails/?id=956631375
So, some equilateral triangle floors/foundations/roof parts would be awesome (They have already done so in structures plus but they dont look nearly as nice as the castle building parts)