May 2017, bye bye files.
Someone decided to sell the files that were here, which then led to them being removed.
That someone being Jason Kemp Senior, who was banned from pretty much every facebook group for doing the same to others and eventually scurried off to create "if you build it they will come" because they only way he could circumvent having the files taken down was to host them on his own website. Scum and villainy. That is all.
If you would like the files, they are available for the price of a big mac meal here:
Orientation is not so important- I always ensure every single part has at least one flat side for flat bed printing. I've put them in a way that should require the least or no support.
Most parts Require Support. Not all - but most. 5,6,13,14,21,22,23,24 especially.
Parts 5 and 6 I personally would flip upsidown to the orientation I have given you, last minute change but you can flip the model yourself in your slicing program. It will require less support than printing upsidown.
I suggest 0.3mm print as you are going to sand it alot anyway and it will be faster in the long run. 5% to 10% infil is probably advised, but it's up to you really.