Which software is the best to use? and which adders or modifiers or tools are most important…
At first attempt, I just tired to select faces in blender and delete them using the circle select…
Should I be selecting junks of the work and separating them for editing? I guess its probably easier to decimate something you dont care about its quality first?
I need someone to walk me through the process 
there are so many ways one could do this, but there are much more efficient ways than what I am currently thinking.