Help me print some Hive pieces?

[Pleasant_Tea_7167]

Hive is a "board game" without a board. Every turn not only moves a piece but modifies the board state itself. Think chess meets dominoes!

I have available to me and Ultimaker 2 extended+, Ultimaker 2+, Ultimaker 3 Extended using Cura.

I am mostly inexperienced and had some questions about printing the following projects. Also some basic questions about what settings to use for infill density, resolution, layer height, support pattern. etc I currently use .25 layer height with 15% density, no adhesion and grid pattern...i'm not sure if there is support.

https://www.thingiverse.com/thing:3102108 How do I pick and choose which piece from the set and how do I know how many I can arrange on the plate? I'm not sure if all the machines mess up in the same place but I think some might have. It might be more efficient to print multiples of the same piece.

https://www.thingiverse.com/thing:1900248 How to cut the pieces thinner so it's mostly the piece "top identifier" and less "height"?

https://www.thingiverse.com/thing:4335705 Is it possible to invert the pieces so instead of a recess it's a plate with the "piece" sticking out?

https://www.thingiverse.com/thing:4335705 Is it possible to remove the "croptop" and make the tile straight again?