Aspire substitute?

I realize that aspire is a lower cost substitute for art cam, but is there anything out there with this same capability for less than what vectric is charging? With the triali had quite tough time designing my own "art" so I think now I'd like to be able to just buy vector art clip art models and have the ability to blend a few together to create a scene. I know I could do this in theory using blender and .stl files, but blender is quite tough for me to navigate in at all.

So, in summation: any info on a cheaper take on aspire, any understandable coaching on blender, or anyone willing to create a scene in blender using the above mentioned file types for a fee are all things I'm interested in.

All info is appreciated.