>>536971349
>>536971409
>>536971818
This guy has a good video on the workflow, it's not as complicated as you probably think unless your models are many thousands of faces, at which point you should stop using blockbench.
https://www.youtube.com/watch?v=0cj43mQ7TZ8

My partner does blender and I use blockbench so I've had to look into it myself.