I wasn't aware that you are using this for, what i'm assuming, is your business. I thought you were using it for personal use. also, i didn't read your entire post, so missed the part about no piracy. my bad, no need to fucking blast me for it.
but, you could try checking these sites out. you might find something specific to what you need.
if you don't find anything, just go with sketchup in 2d view
The worst time to have a heart-attack is during a game of charades.
Me fail English? That's unpossible.