Coming from ground zero too learn how to use the maslow

Hi Friends,
I am excited to build and use the Maslow. I am buying material, building the frame waiting for a kit to become available again.
I have really limited knowledge of the software user steps to get from essentially zero to being able to create with Maslow.
Would You give me the steps and possible links to software I need to learn?
I am currently relearning sketchup after letting it go dormant for years.
Any free software links would be greatly appreciated.
Thanks in advance, Lonejack.